Bluetooth Headphones IPX7 Waterproof Wireless Sport Earphones HiFi Bass Stereo Sweatproof Earbuds wMic Noise Cancelling Headset for Workout Running Gym

Features: Sweat & Water-Proof - Waterproof nano-coating protects the headphones during workout. Rain, sweat, or shine, these waterproof headphones push you further and handle tough training. Hands-Free Calls - Take calls, make calls and talk to voice assistants without having to pause what you're doing. Exceptional Listening Experience - CSR chip and Bluetooth 4.1 technology deliver high-fidelity audio. Specification: Chip: CSR BC8635 Bluetooth version: Support Bluetooth V4.1+EDR specification. Built-in A2DP function. Bluetooth protocol: A2DP1.2, AVRCP1.0, HFP1.6 Wireless frequency range: 2.4 GHz to 2.48 GHz Modulation method: GFSK Headphone power: Class 2 (10 meters, 33 feet) Audio frequency range: 20Hz ~ 20KHz Battery capacity: Rechargeable polymer lithium battery (85mAH) Charging time: about 2 hours Charging voltage: DC 5V Talking time: 5-7 hours Play time: 5-7 hours Standby time: up to 220 hours