CT14 Micro 4.2 Stereo Bluetooth Power Amplifier Board Module 5VF 5W+5W Mini with Charging Port for Refitting Idle Sound Box

Working voltage: 3.7-5V DCSize :402012mm(length * width * height)Power:5wPacking: 1PcBluetooth module operation: Turn on the Bluetooth of the mobile phone, scan the device,find "JZ-B5W2" and click to connect This Bluetooth is version 4.2. Compatible with all mobile phones and Bluetooth adapters on the market. The transmission distance in open land is about 15 meters. Automatically connect back to paired devices and play music automatically.USB sound card, no drive, plug and play (undernormal lithium battery power supply).