Features 1 Wired headphones comfortablely wrap the ears and fits the contours of the human ears making gaming headphones easy to wear and not easy to get tired of 2 Skin friendly material for long lasting cozy wearing 3 Foldable and adjustable for different sizes enjoy what you want 4 Adopted active noise cancelling technology which blocks environmental noise and weakens background sound for dual noise cancelling 5 New generation of bluetooth 5 1 chip low power consumption more powerful battery life experience 6 HIFI stereo music auditory feast real shocking experience Specifications Model EL A3i BT Version BT 5 1 Color Black Gray Wearing Type Over ear Speaker Diameter 40mm Wireless Range 12m Power Voltage 4 2V Charging Voltage 5V Talk Time 30H Music Time 35H Charging Time 2 5H Standby Time 230H Battery Capacity 400mAhMicrophone Yes Mic Sensitivity 42dB Speaker 32ΩPackageIncluded 1 EL A3i Gaming Headphone 1 User Manual 1 Storage Bag 1 Type C Cable 1 AUX in Cable