Ergonomic head-mounted design for comfortable and secure fit during long wear and strenuous activities like running. Intelligent noise reduction technology for immersive music experience and enhanced audio quality. Memory pairing and low-power Bluetooth-Compatible 5.3 chip for quick and easy connection, extended battery life, and stable signal with no delays or drops. Built-in 40mm sound unit and bio-diaphragm for rich and vibrant sound, providing a concert-like experience. Multi-function button design for convenient one-handed control, compatible with various Bluetooth-Compatible devices like smartphones, tablets, and laptops. Item Name: Earphone Material: ABS Bluetooth-Compatible Version: 5.3 Transmission Range: 10 Meters Playing Time: 6-8h Speaker Unit: 40mm Charging Interface: TYPE-C Battery Capacity: 200 MAh Power Input: 5V/0.3A Charging Time: 2h Speaker Impedance: 32 (Ω) Sensitivity: 109±3 (dB) Frequency Response Range: 20-20k (Hz) Wearing Type: Head Mount Playback Control: Support Noise Reduction: Smart Noise Reduction Features: Immersive Stereo Sound, Noise Reduction, Long Battery Life Size Details: L: 20.5cm/8.07", W: 17.5cm/6.89" (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 Headset 1 x Data Cable 1 x Audio Cable