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    Home » Yaber K300s Ultra Short Throw Projector User Manual
    Yaber

    Yaber K300s Ultra Short Throw Projector User Manual

    By Gabriel SmithFebruary 12, 2026No Comments8 Mins Read
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    Yaber-LogoYaber K300s Ultra Short Throw ProjectorYaber-K300s-Ultra-Short-Throw-Projector-ProductSafety Instructions

    • Do not clean the product with chemical reagents, detergents, or any liquids to avoid corrosion of the circuit board by rainwater or mineral-laden moist liquids. bhy
    • Do not block the air inlets/outlets to avoid damage to internal electronics due to improper cooling.
    • Do not clean the lens directly with paper, cloth, or other cleaning tools to avoid lens damage.
    • Keep the device and its components and accessories out of reach of children.
    • Ensure the device is used in a dry and well-ventilated environment.
    • Do not place the device in any heating equipment (such as dryers and microwaves) to dry.
    • Do not forcefully squeeze the device or place obstacles on top of or behind it to avoid damage.
    • Do not throw, hit, or shake the device violently to avoid damaging internal circuit boards.
    • Do not attempt to disassemble and reassemble the device yourself.
    • If any issues arise, contact Yaber after-sales service.

    Package Contents

    K300s Projector

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-1

    TV Dongle

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-2

    Remote Control

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-3

    Cleaning Cloth

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-4

    QSG & FAQ

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-5

    K300s Power Cord

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-6

    HDMI Cable

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-7

    Special for K300s Pro

    Subwoofer

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-8

    Subwoofer Power Cable

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-9

    Overview

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-10 Yaber-K300s-Ultra-Short-Throw-Projector-Figure-11 Yaber-K300s-Ultra-Short-Throw-Projector-Figure-12

    Basic Setup

    Projection Ratio and Distance

    For optimal image quality, place the projector on a flat and stable surface. To adjust the vertical angle, use the adjustable foot screw at the bottom of the projector.

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-13

    You can adjust the image by 50% using the [Projector Settings] – [Zoom].

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-14

    If needed, rotate these screws to slightly adjust the projection angle, max degree:2°

    Connecting the Power Cable

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-15

    • Plug the USB Dongle into the USB port of the projector.
    • When the white power light blinks, click the pair button on the subwoofer. When the light blinks fast, it enters the pairing mode.

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-16

    How to Use TV

    Click onthe  TV to enter the system on the home page.

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-17

    To pair, hold down the pairing button for a longer duration.

    Can’t Find Remote

    1. You can use the remote control function of the Google TV app on your smartphone as a temporary solution to control the TV interface.
    2. You can use the remote control function of the Yaber app on your smartphone as a temporary solution to control the TV interface.
    3. Contact the after-sales team to obtain a new remote control.

    How to Remove the Dongle

    1. Use a screwdriver to remove the screws on the cover of the Dongle compartment. (Screw size: ST2.3×6mm)Yaber-K300s-Ultra-Short-Throw-Projector-Figure-18
    2. Install the Dongle into its compartment (make sure the dongle is firmly inserted to ensure it is recognized)Yaber-K300s-Ultra-Short-Throw-Projector-Figure-19
    3. Insert the Dongle into its compartment. (Make sure the Dongle is firmly inserted to be recognized.)Yaber-K300s-Ultra-Short-Throw-Projector-Figure-20
    4. Restore the cover of the Dongle compartment.

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-21

    Screen Settings

    Auto Keystone Correction

    Auto Keystone is enabled by default. If you need to disable this feature, navigate through [Home] – [Settings] – [Projection Mode] – [Auto Keystone].

    Manual Keystone Correction

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-22

    If further screen adjustments are needed, please select [Manual Keystone] in [Projection Mode] and adjust the screen by dragging the arrows.

    Auto Focus

    Auto-focus is enabled by default and will refocus each time the machine is moved.

    Manual Focus

    If further focus adjustments are necessary, use the focus button on the remote control to achieve the desired image.

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-23

    1. Find a smooth and even wall to project the image.
    2. Adjust the projection size by moving the projector till the uneven image is invisible.e
    3. If the above suggestions still do not work, try buying a fixed-frame projection screen.

    Image Settings

    Auto Screen Fite and Auto Obstacle Avoidance

    Hold the menu button on the remote to access settings while playing videos or images. Besides, color adjustments only take effect during these activities.

    Image Brightness Settings

    Adjust the screen brightness through [Home] – [Settings] – [Image Quality] – [Brightness Setting].

    Image Color

    Adjust the image color through [Home] – [Settings] – [Image Quality] -[Picture Mode].

    Connection

    Network

    Wi-Fi

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-24

    1. Projector connection steps: [Settings] – [Wi-Fi], connect to the desired Wi-Fi. Dongle connection steps: Go to [TV] on the home page, then [Settings] – [Wi-Fi] to connect to the desired Wi-Fi.
    2. If you experience network lag, check the stability of the network signal first through [Settings] – [Connected Wi-Fi] – [RSSI].

    Wired Network

    The projector andthe donglee need to be connected to Wi-Fi separately.

    • If the projector is connected to a wired network, and your phone is on the same local network, you can share your phone screen. Read the next section for sharing instructions.

    Screen Share

    1. Ensure your phone and the projector are connected to the same Wi-Fi network.
    2. In the Yaber app, tap [Connect Device] and select the device named [Yaber_K300series_xxxx] to connect.
    3. Once connected, select the screen mirroring option in the Yaber app to share your phone screen with the projector.
    4. When you wish to end the screen share, go to your phone’s control center, select the device, and stop sharing.

    If you need to share the screen from streaming apps like Netflix, Disney, or Prime Video, enter the Dongle system to share.

    1. Ensure your phone and the projector are connected to the same Wi-Fi network.
    2. In the screen mirroring settings on your smartphone, select the device named [Yaber_K300series_xxxx] to connect.
    3. Ensure your phone and the projector are connected to the same Wi-Fi network.

    Bluetooth

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-25

    • Connecting External Devices to the Projector (Using the Projector as a Bluetooth Speaker)
      • Find the projector named [Yaber_K300series_xxxx] in the Bluetooth list of your external device and connect.
    • Connecting the Projector to External Speakers/Headphones
      • Navigate through [Home] – [Settings] – [Bluetooth] on the projector, find your device, and connect.

    Other Connections

    HDMI Compatibility

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-26

    HDMI 1.4 (HDMI CEC/HDMI ARC supported ). After connecting an external device via HDMI, select [HDMI] from the home page to switch to the corresponding input source.

    Game Mode

    In game mode, the projector will reduce hdmi latency time to bring you a more comfortable gaming experience.

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-27

    • After switching to the game mode, the screen will return to its default shape. You can manually move the projector to the proper shape. Also, adjusting the screen size, shape, and position is not supported.

    Motion Estimation

    Yaber-K300s-Ultra-Short-Throw-Projector-Figure-28

    K300s support the MEMC(Motion Estimation and Motion Compensation)feature, which can make fast-moving images smoother without dragging shadows. Click on Settings – Image Quality – MEMC to open.

    Video Guideline

    Many common problems can usually be solved with appropriate setting adjustments. such as battery
    issues, instability of auto focus or keystone, Dolby sound issues, WiFi or Bluetooth connection.

    • If you have any questions, please send your order No. and problem in the mail subject, e.g., [US+Model No. +000-0000000-0000000+your problem] to our mailbox, faster solved if you kindly send videos or pictures. Our R&D Team is dedicating itself to bringing you a wonderful & warm watching experience with your families & friends.
    • Our QC Team set a strict full inspection process and well package before shipment to ensure good quality and functionality for every Yaber Projector. If you encounter any problems, please give us a chance to serve you and learn more aboutthe  Yaber Projector. 🙂

    YABER Lifetime Professional Support

    Dear valued customer!

    Thank you for choosing the Yaber projector. This manual will help you navigate through all the features. We understand that there may be many questions and concerns that arise during the use of the projector. We are also eager to hear your feedback. However, leaving a review on the product page does not get the fastest solution. Many common problems, such as inability to l. auto focus or keystone, sound issues, WiFi or Bluetooth connection issues, can usually be resolved with appropriate settings adjustments.

    Rest assured, our service team will offer the solution to youwithinh 24 hours. Your satisfaction is our top priority. If you encounter any issues, we sincerely hope you will allow us to make things right. We also encourage you to thoroughly explore the contents of this manual first. We wish you an outstanding experience with the projector. Yaber Consumer Service Team

    FCC Warning

    This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference, and (2) this device must accept any interference
    received, including interference that may cause undesired operation.

    •  Reorient or relocate the receiving antenna.
    • Increase the separation between the equipment and receiver.
    • Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
    • Consult the dealer or an experienced radio/TV technician for help.
    IC Warning

    This device complies with Industry Canada’s license-exempt RSSs. The operation is subject to the following two conditions: This device may not cause interference, and this device must accept any interference, including interference that may cause undesired operation of the device.”

    Customer Service

    • Website: https://www.yaber.com/
    • Timings: 9:00 am to 7:00
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    Gabriel Smith

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