Keweier Mini Bluetooth Wireless Headphones with Bluetooth V (Blue) Sweat-proof, durable design, Onscreen Battery Meter. Up to 5 hours of Talk/Playing Time and 160 hours Standby Time. luetooth profiles: A2DP, AVRCP, HSP, HFP Clear bass resonance, wind noise reduction, and superior sound isolation Function: Bluetooth, Noise Cancelling, Microphone