Features: [IPX8 Waterproof] The headphones can stay submerged under water without sustaining damage, perfect for running, surfing and more. [Long Working Time] 95mAh rechargeable battery offers up to 6 hours of music playing time. You can charge it with USB cable via Micro USB port. [BT Connection] Wireless BT4.0 technology ensures transmitting strong signal in high speed. Stereo music makes you immerse in your music world. [Hands-free & Multi-point] Built-in microphone enables hands-free calls to set free your hands when doing sports. It also supports multi-point connection. [Suitable for Outdoor Sports] 360 rotatable ear-hooks guarantee stable and comfortable wearing for swimming, running, skating and other outdoor sports. Specifications: Model Number: LAE-802 Waterproof Level: IPX8 BT Version: BT4.0 Transmission Distance: up to 10m (no obstacle) Impedance: 32 Frequency Response Range: 20Hz-20KHz Sensitivity: 1213dB Battery: 3.7V 95mAh (512417) Working Time: 4-6 hours (depends on music volume) Charge Port: Micro USB Color: Black, Blue, Green (optional) Cable Length: 50cm / 1.64ft Main Item Weight: 22g / 0.80oz Package Size: 11.1 * 9.0 * 7.8cm / 4.37 * 3.54 * 3.07in Package Weight: 60g / 2.12oz Package List: 1 * Waterproof Headset 1 * USB Cable 2 * Pair of Earcap 1 * User Manual (English & Chinese)