Sports wireless headset with neckband design Visually intriguing design, premium material, eco-friendly fashion DSP technology, eco reduction and noise-cancelling Ergonomic biotechnology is enough to conquer your need to wear it adopts skin-friendly silica gel with antibacterial softness and ear cancel adhesion integrated microphone control for most IOS and Android devices One-click line control, compatible with most smart devices Bluetooth Specification: - V4.0+EDR - Bluetooth Profiles: HFP, HSP, A2DP, AVRCP, APTX, CVC Version 6.0 - Chipset: CSR 8635 (UK) - Operating Range: 10m 360° - Driver: ¢10mm, 32 ohms, 20-20,000Hz - Microphone: Build-in Omni-directional - Battery Capacity: 3.7v / 180mAh Li-ion battery - Working Time: 3 hours - Standby time: about 50 hours - Charging Time: Less than 2 hours - Wireless headphones Charging port: Micro USB What's in the box 1 x Wireless headphones 1 x USB Charging cable 1 x User Manual 2 x Earbuds