Description Advanced Bluetooth: Industry-leading bluetooth Technology supports A2DP, AVRCP, HFP and HSP for a sufficient wireless experience;Premium Stereo Sound: Enjoy prominent bass, outstanding mids & sparkling highs with this high-end bluetooth headsets 20Hz-20KHz frequency range.Active Noise Cancellation: The Over-ear design makes the noise canceling functions come true, it can block the outside noise & lose oneself in the music world.Rechargeable Battery: Charge your wireless headphones for about 2 Hours & Enjoy Long hours of playtime,Full control: The headphones are made with all functional buttons. For instance, you can answer and hang-up phone calls; play, pause and skip music tracks and control the volume, as well as to switch from bluetooth to TF card play or FM radio. Specification: Standard Charge Time: Approx. 2 HoursBluetooth distance: About 10 metersPlay Time: About 7 hoursFrequency response:20Hz-20KHz The actual range will vary depending on factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity, aerials performance, operating system, software application, etc. Instruction: 1. Headset needs to be charged in the beginning. Slide the power switch to power it on, you will see the blue light on with a voice " The bluetooth device is ready to pair".2. On the device you wish to pair, find the Bluetooth menu and "search for" devices (Connect with X2).3. If the phone asks for a pass code, then the customer needs to input 0000. Package Include: 1 x Bluetooth headset(with nice retail box)1 x USB Charging Cable1 x User Manual