Main Features: • Smart Bluetooth 5.0 Chip breakthrough internal integration of high-quality chips, compatible with iOS system more shock • Perfect sound High precision 40mm driver, bring you vivid sound field, sound clarity, sound shock feeling, capable of various games • Comfortable to wear Uses super soft over-ear pads, which is more comfortable for long time wear, great headphone for game player • Folding and carrying, carry it with you • 250mAh battery capacity, working for up to 10 hours • Wireless wired switching, free connection for one second • Response frequency 20Kz - 20KHz • Sensitivity 90dB + / - 3dB • Impedance 16Ω + / - 15pct