Bluetooth Wall Amplifier Parameters:
 2.8-inch Display, 320*240 Resolution
 Key Touch
 Power Supply Mode: AC 110-250V
 Output Power: 2*25W or 4*15W (Digital power amplifier)
Audio Inputs one set; Output one set
RS485: Output one set(Optional)
 Video Player
Timing output: one set
 Bluetooth: Support
 Installation: 86 standard wire box, front wall
 Product size: 86*86*10mm
 Wire Box Opening Size: 86*86*57mm
 One way Bluetooth, the bluetooth of this device can only be connected to mobile phones/tablets and other bluetooth devices who's Bluetooth function is two way to play and control the music, CAN NOT be connected to the bluetooth ceiling speakers or TV(one way bluetooth) by bluetooth directly.

Bluetooth Wall Amplifier Function:
Radio Function
 Support TF card, USB Play
 2 or 4 channel Speaker Output
 Support departure doorbell
 Multi-stage timing switch, music play, linkage control of smart home
 Supporting power-off memory, power-on and trigger music play
 Support external 485 control local machine(Optional)

Mini Passive 12W Ceiling Speaker Specification:
 Power: 12W
 Impedance: 8Ω
 Sensitivity: 85dB
 3'' Full range speaker driver
 Aluminum cylinder shell
 Installation Cutout Size: Φ95-100mm
 Product Size: Φ115x85mm
Net Weight: 250g
 Gross Weight: 300g