Feature:

XS3868 Bluetooth Audio Module
Buletooth: Version 2.0
Frequency: 2.402 ~ 2.480GHz
Power: 4dBm(at antenna pad)
Receive sensitivity: Better than -82dBm
Range: 10meters
Data Rates: Up to 3Mbps(over the air)
UART Data transfer rate: 115200bps
Host Interface: UART (No flow control support)
Audio interface: Microphone (Mono microphone input with bias)

Specification:

Profiles: A2DP V1.2-Sink Only
                AVRCP V1.4-Controller Only
                HSP V1.2
                HSP V1.5
Supply Voltage: 3V ~ 3.6V DC
I/O Voltage: 1.7V ~ 3.6V DC
Current Consumption (Operational): Less than 55mA (active)
Current Consumption (Idle): <10mA (sleep)
Connections (External Antenna): Connection via SMT pad
Size: 30 x 17 x 3.4mm