bluetooth 4.0 Audio Receiver Module DC 7V-30V CSR8635 For DIY Speaker

Feature: 1. bluetooth chip CSR8635, bluetooth version 4.0 (also supports 2.0 2.1 3.0) faster transmission, better sound quality 2. With wide voltage working DC DC 7V-30V, with anti-connection reverse design 3. The bluetooth module output adopts NE5532 pre-operational amplification. The op amp adopts a positive gold-plated socket to facilitate the replacement of different operational amplifiers. Large amplitude of the output signal. 4. With automatic audio signal switching function, add the bluetooth function under the state of amplifier or active speaker; The automatic switching function: the default is the aux audio signal, and when there is a bluetooth signal, it is automatically switched to the bluetooth play mode, when the bluetooth playback is paused or no bluetooth signal will automatically switch to aux signal mode 5. bluetooth search to the name BT-AUDIO without password pairing connection 6. The board size is about 57.5 x 50 x 16.5mm (L x W x H) 7. Accessible and effective transmission distance is about 15m Package includes: 1 x Audio Receiver Module