FBHDZVV Audio Amplifier Board with Bluetooth- 10W 15W 20W Dual Channel Stereo Amplifier Board 12V/24V Amp Digital Power Amplifier Module with Protective Shell for DIY Speakers/Car Bluetooth Device

Working voltage: DC: 8~24V Bluetooth version: 5.0 Transmission distance: 15 meters (visual unobstructed) Number of channels: two channels (stereo) Output power (@1KHz): 16W*2 @12V 4? 10W*2 @12V 8? 15W*2 @16V 8? 20W*2 @20V 8? 30W*2 @24V 8? (requires heat sink) Adapter speaker (30W~150W): 4 ohms (8~12V power supply) 8 ohms (8~24V power supply) 16 ohms (8~24V power supply) Package includes: 1 x Digital power amplifier module 1 x Acrylic shell NOTE: 1. Use the power amplifier board as far as possible from the WIFI signal (router) 2. Recommended power supply voltage DC 8~24V, more than 26V, the chip will burn out. 3. The power supply does not exceed 12V when connected to a 4? speaker, and the power supply does not exceed 24V when connected to an 8 ohm speaker. 4. The supply current is recommended to be 2A or more. 5. Module working power exceeds 20W*2, need to add heat sink. 6. The speaker cable should not be too long, and it should be suitable within 1 meter. 7. Pay attention to static electricity protection. Before touching the power amplifier board, you need to release the static electricity on your hand to avoid static electricity from penetrating the chip. The Bluetooth chip is sensitive to static electricity. 8. It is recommended to adapt the rated power of the speaker to 30W and above to avoid the burning of the speaker.