This bluetooth headset is made of zinc alloy casting body, through multiple processes such as CNC carving, polished metal paint, vacuum plating, etc., full of sense of technology, showing unique taste and personality. Small body, built-in 13MM super large dynamic coil, high-sensitivity high-fidelity analysis, customized HIFI-level sound. The titanium-gold composite diaphragm can finely filter and accurately reproduce the details of the original sound. The bass is relaxed and powerful, the treble is full and clear, and the dual-tone cavity resonates, just like a 360-degree stereo surround scene. Handle-type semi-in-ear design, which has been improved and fit naturally after thousands of real-life wears. The weight of the earphones is distributed outside the ear through the handle to reduce the pressure in the ear. No matter how small the ear canal is, it can be worn for a long time without pain and listening for a long time. It is light and comfortable. With fast charging technology, charging for 10 minutes can satisfy the earphones for more than 1 hour at 50% volume. Using the new generation of Bluetooth 5.3+EDR technology, it has strong anti-interference, fast connection, low delay, stable transmission and long communication distance. Bluetooth Version: Bluetooth V5.3 Input: DC5V-500mA Wireless Propagation Distance: about 10 meters Headphone Battery Capacity: 30mAh Charging Compartment Battery Capacity: 280mAh Charging Box Full Time: about 2h Standby Time: about 160h Playing Time: about 4h Material: PC, Aluminum Alloy, ABS Color: Black, Blue(optional) Size: 48 x 24 x 52mm Weight: 200g Package List: 1 x Gaming Wireless Earbuds