MPow Universal Bluetooth Audio Transmitter- Receiver (2-In-1)

Specification:
Bluetooth specification: V3.0
Bluetooth profiles: A2DP and AVRCP
Frequency range: 2.402GHz-2.480GHz
Operating distance: Up to 10 meters
Charging input voltage: DC 5V
Working time:
TX Mode: Up to 8 hours
RX Mode: Up to 6 hours
Charging time: About 2 hours
Dimensions: 51 x 27 x 11mm
Weight: 0.4oz (11.6g)