The memory-protein ear cushions ensure lasting wearing comfort as they simulate human skin texture.The bluetooth headset can be adjusted to the perfect fit with the help of the durable quality stainless steel slider and soft padded headband.Take it with you on your each travel to enjoy music anywhere, anytime. Power on: Press the power switch button for a short time, the power indicator will flash quickly to slowly, and the headset can be used normally after a successful connection. Shut down: Press the power switch quickly and briefly, the power indicator will slowly flash until it disappears, and the headset is in the off state. Product Parameters: Sensitivity:1103dB Frequency range:20Hz-20KHz Speaker size:40mm Impedance:32 Microphone:built-in Sensitivity:-383dB Distance:10m Battery capacity:300mAh Charging Voltage:DC3.7V Impedance:2.2K Cable length:True wireless design Connectors:V5.0 Package Include: Headset x1