Directional sound transmission technology for clear and focused sound quality without sound leakage. Ergonomic zero-sense design for comfortable all-day wear without blocking the ears. The SFE ear-fitting design ensures stability and prevents displacement, even when running or jumping. Enhanced HIFi sound quality with powerful bass thanks to the new generation acoustic structure cavity. Upgraded Bluetooth-compatible 5.3 chip for faster and more stable connections, providing clearer and smoother music and gaming experiences. Item Name: Earphone Material: PC, ABS Bluetooth-compatible Version: V5.3 Battery Capacity: 100mAH Battery Life: about 12 Hours Standby Time: about 200 Hours Charging Time: about 1.5 Hours Speaker Specifications: 16mm Composite Film Transmission Distance: Barrier-free >10 Meters Wearing Method: Single Ear Open Hanging Ear (right Ear) Playback Control: Support Noise Reduction: Smart Noise Reduction Features: Directional Sound, Noise Reduction, Low Latency Size Details: L: 5.2cm/2.05", W: 4.8cm/1.89", H: 1.15cm/0.45" (Approx.) 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 Headphone 1 x USB Cable