•Music play/pause, call reminder/binaural call, intelligent noise reduction, waterproof life •Headphone charging case is Android Micro USB charging port •Engineering design, comfortable to wear, not easy to fall off •The Bluetooth-compatible V5.0 keeps a stable and faster signal transmission Specification: •Earphone: •Bluetooth-compatible version: 5.0 +EDR •Bluetooth-compatible distance: 10 meters without barriers •Speaker unit: 13mm •Full-frequency moving coil unit: •Frequency response range: 20Hz-20KHz •Sensitivity (SPL): 94dB •Nominal impedance: 32 ohms •Output power: Maximum 30mW (IEC)*2 •Play time: about 14 hours (headphone + charging case) •Rated input: DC5V 55mAh •Headphone battery capacity: 3.7V 40mAh •Headphone weight: 4.2g * 2 •Charging case: •Material: ABS •Size: 72.5 x35 x28.5mm •Rated output: DC5V 550mA •Battery capacity: 3.7V 400mAh •Charging case weight: 33.8g •Compatible with: for iPhone, for Samsung, for Huawei, and other Bluetooth-compatible enable devices Package included: •1 x TWS Wireless Bluetooth-compatible Earphones •1 x Charging Case •1 x Charging Cable •1 x English and Chinese User Manual