Wireless Motorcycle Headset Waterproof Blue Tooth Stereo Headset for Outdoor Sports Universal Communication Systems Stereo Music -- Description: 1. Blue tooth 5.0, support HFP/HS/A2DP/AVRCP2. Automatically answer incoming calls, support Chinese and English switching3. 2 in 14 blue tooth support. Large battery capacity, standby time up to 2 weeks5. Specification: Blue-tooth version: V4.1 Mode protocol: HFP/HS, A2DP, AVRCPTuary battery type: lithium battery Product design features: rain and snow resistant working temperature : -20 deg; c to 60 deg; c (-4 deg; up to 140 deg; F) Standby time: 2 weeks Operating time: 16 hours Packing list: Headset * 1 Back clip * 2 Magic tape * 2 Charging cable * 1 Manual * 1