The Ultimate Music Experience! Super Deep Bass, Import Bluetooth Chip from UK, More stable connection, Dual Driver, Large Battery Capacity, Suitable for Gym Sport Running Sport exercise headphone, with HD music play, enjoying music and other audio when doing exercise! Highly compatible Bluetooth 4.0, you can connect the headphone easily with your phone. It also has built-in microphone, which can answer the call conveniently without holding your phone. Special magnet attached design prevents tangles when 2 plugs stick together. Light weight makes you easy to wear it even a long time. Awei Wireless In-Ear Stereo Sound Magnetic Bluetooth Headphones Sport Earphones Specifications: Noise-cancelling headsets allowing you to block out unwanted background sound. High definition headsets letting those you're speaking to hear you with crystal-clear clarity. The Bluetooth signal has a stable transmission distance of 10 meters, it supports connecting two devices at the same time and connecting automatically. Magnetic design, easy to store, convenient to hang around the neck, not easy to entangle. Item Name: Earphone Material: CNC Metal + ABS + TPE + Silicone Model: G20BL Bluetooth Version: 4.2 Standby Time: 200 Hours Call Time: 8 Hours Music Time: 4 Hours Charging Time: 1.5 Hours Battery Capacity: 55mAh/3.7V Communication Distance: 10 Meters Open Space Waterproof: Yes, Daily Life's Water Resistant (But Not for Bathing, Swimming, Diving, etc) Features: Wireless, Noise Reduction, Stereo 4HD Sound, Magnetic Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bluetooth Earphone 1 x USB Cable 3 Set of Ear Caps 1 x English User Manual