1. Technologies: BT5.0, a2dp \ avctp \ avdtp \ avrcp \ hfp \ spp \ smp \ att \ gap \ gatt \ rfcomm \ sdp \ l2cap (receiver mode only) 2. Operation range: up to 15m / 50ft (without any blocking objects) 3. Pairing name(Receiver mode ): Bluetooth Music 4. Transmitter mode: blue LED light is on 5. Receiver mode: white LED light is on 6. Signal to noise ratio: about 110dB 7. Frequency response range: 10Hz-20KHz 8. Output impedance: 75 ohms 9. Size: 10.5x6.5x2.5cm
