Package:
1 x Bluetooth Audio Transmitter/Receiver Adapter(KN319)
1 x Micro USB Power Cable
1 x RCA Cable
1 x 3.5mm Aux Cable
1 x User Manual

Specifications:
Model: KN319
Operation Range: Up to 10m / 33ft (without any blocking objects)
Pairing name:KN319
Charging Time: 2 hours
Working Time: RX:6 hours ; TX:5 hours
Battery Type: Li-Polymer (200mAh)
Dimensions: 44 × 44 × 12mm 
Weight: 18g