Features Excellent PVC Material: This digital amplifier board is made of excellent PVC material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. Safe And Reliable: This digital amplifier board integrates self protection circuits, which include over voltage, under voltage, over temperature, DC detection and short circuit protection. CSR8635.4 Version Bluetooth Module: This digital amplifier board adopts CSR8635.4 version Bluetooth module for stable connection. Compact And Lightweight: This digital amplifier board is small and lightweight, which makes it very easy to install and replace. Wide Application: This digital amplifier board has a wide range of applications and can be used for stereo and mixing consoles. Specification: Item Type: TPA3116D2 Digital Amplifier Board Material: PVC Model: XH M548 Chip type: TDA3116D2 Bluetooth Module: BTM836 (Version 4.0) Transmission distance: Maximum 10 m (without interference blocking) Supply voltage: DC12-24V Output power: 120W x 2 Channel number: dual channel (high bass setting) Package List:1 x Digital Power Amplifier Board Package List 1 x Digital Power Amplifier Board