Using TPA3116D2 digital chip.Uses CSR8635 4.0 Bluetooth module.NE5532 dual op amps are used.Uses an efficient array radiator.Specifications:Chip Type: TPA3116D2Bluetooth module: BTM835/CSR8635 (version 4.0)Transmission distance: 10 meters maximum (no interference blocking)Supply voltage: DC12-24VSupply current: more than 3AOutput power: 120W+120WEfficiency ratio: more than 90%Number of channels: Two-channel (high-bass adjustment)Colour: blueMaterial: metalSize: 98 x 80 x 18MMPackage Contents:1 x Amplifier BoardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

TPA3116D2 Bluetooth 5.0 Dual Channel 2120W High Power Digital Power Amplifier Board Audio 

Using TPA3116D2 digital chip.Uses CSR8635 4.0 Bluetooth module.NE5532 dual op amps are used.Uses an efficient array radiator.Specifications:Chip Type: TPA3116D2Bluetooth module: BTM835/CSR8635 (version 4.0)Transmission distance: 10 meters maximum (no interference blocking)Supply voltage: DC12-24VSupply current: more than 3AOutput power: 120W+120WEfficiency ratio: more than 90%Number of channels: Two-channel (high-bass adjustment)Colour: blueMaterial: metalSize: 98 x 80 x 18MMPackage Contents:1 x Amplifier BoardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.