The best value headphones. USB charging; DC 5V input. Battery: 200 mAh. Wireless frequency: 2.402-2.480 GHz. Wireless distance: 10 meters. Frequency response: 20Hz-20kHz. Output power: 15 MW*2. SNR: 88dB. Charging time: 2 hours. VIDEO time: 20 hours. Bluetooth 4.1. V. Compatible with any type of smartphone with Bluetooth connection. Colors: Black, White, Gray, and Pink. Color sent randomly.
