Bluetooth name: TWS896 Bluetooth version: V5.0 Transmission distance: 10 meters Frequency range: 20Hz-20KHZ Support protocol: A2DP, AVCTP, AVDTP, AVRCP, HFP, SPP Single play time: about 3 hours Charging compartment battery capacity: 300mAh Waterproof rating: IPX5 Product net weight: 40g