1. If there is no sound when playing the video, please turn off Dolby Audio on the connected device(Firestick, Chromecast, Apple TV).
2. If the M4 mini DLP projector fail to start or automatically shut down or stop working. This is because the M4S DLP projector activates the sleep mode in order to protect and extend the battery life when the battery is low. The projector can continue to be used after it is fully charged
3. USB port does not support reading USB flash drives. Only supports charging of firesticks and other devices
4. Mainly used for home entertainment, not recommended for Powerpoint, Word, Excel, or business presentation.
5. It is recommended to use the M4S projector in a dark environment to get the best projection. Best projection distance: 1-2.2m.
6. It's doesn't support ceiling installation, only support front projection
apeman M4 Beamer*1
0.7m HDMI Kabel*1