ONIKUMA B2 Headset Headworn Bluetooth 2.4g Wireless Wired Three Mode Lightweight E-Sports Gamer Headphone

Product Features： Long Endurance：About 25 hours battery life, fully charged Flexible Usage: Supports wired/2.4G/Bluetooth connection playback, Wired and wireless, flexible to use. Key Control very convenient: Press the physical button on the left earmuff at will Mastering all kinds of adjustments. Specifications: Speaker Size: 40mm Impedance: 32Ω+-15% Sensitivity: 105+-3db Frequency Range: 20HZ-20KHZ Microphone Size: 6.0*2.7mm Microphone Sensitivity: 105+-3dB Control Button: Yes LED Working Voltage: DC5V+-5% Working Current: ≦180mA The gaming headsest battery's cell the posiive electrode uses a three-dimensional hvbrid conductor composed of few-walled graphene, few-walled carbon nanotubes, and superconductina black, while the negative electrode uses a mixture of few-waled carbon nanotubes and super conducting carbon black as the conductive material.Meanwhile, electroly wetting agents are incorporated into the electrodes. This approach increases the volumetr