4" Smart Bluetooth Wall Amplifier For Ceiling Speakers

Smart Home Audio 4 Channel Wireless Bluetooth-compatible Wall Amplifier Mini Multifunction Stereo Board Hifi with Fm Radio
Bluetooth Wall Amplifier Specifications:
Output Power: RMS 4x20W
Output Impedance: 4-8Ω
T.H.D.: 0.03%
Frequency Response: 20Hz-20KHz
Audio S/N: 98dB
Memory Card: up to 32G
Size: 86*86*11mm

Bluetooth Wall Amplifier Funtions:
1. Timed message: set the time to automatically play the message content
2. Support power on automatically play songs
3. Power-off memory function: remember the state played before the last shutdown
4. Sound function: support ordinary, rock, classical, jazz, pop and other sound effects
5. Support trigger doorbell function, DB+GND
6. Support linkage trigger to play music, GND+ trigger playback
7. Support linkage triggering boot, GND+ trigger playback, expenditure trigger shutdown, GND+ timing output
8. Supports timing output level signal linkage with other devices, GND+ timing output
9. Time switch machine, custom timing boot song

Package include:
1. wall mounting amplifier
2. remote control
3. mounted box, bracket and screw