A239 bluetooth Receiver Stereo Audio Receiving Module USB Power Digital Amplifier Board For Small Speaker

Features Sound quality is very good by using this module With 3 keys for adjustment convenient and easy operation USB interface powered by DC 5V Applicable speaker impedance 4 6 8 ohm How to use it Long press on off key until indicator light flashes red and blue alternately start pairing your device display SANWU Audio automatic connection then start to play your device audio Specifications Supply Voltage DC 5V Recommend mobile phone charger or power supply Power Interface Mini USB InterfaceAudio Input Bluetooth 4 0Bluetooth Chip CRS8635Impedance Range 4 8 ohm best for 3WPCB Board Size 60 x 35mm 2 36 x 1 4inchWeight 13g Package includes 1 x bluetooth 4 0 Power Amplifier Board