Oversized round ear wrap, sound insulation and comfortable. This Headphone is specially designed for game lovers and music enthusiast, which features Advanced Wireless Bluetooth 4.1Technology, built-in high-grade Microphone and speaker, hands-free function and lightweight . A super companion for you during daily life. Outstanding quality, let you enjoy an unprecedented experience of hearing. Suitable for various head types. Features: Advanced Bluetooth Technology: Latest Wireless Bluetooth 4.1 Technology, the transmission speed is faster and more stable, can effectively reduce the sound quality damage. Hands-free Function: It enables you to pause or play music, answer or end the phone with one button. With built-in microphone, it supports hands-free function, set your hands free. Unique Design: Skin-friendly silicone pad in the head beam will give you soft and comfortable feeling. Press the LED light to light up,180 degree rotary soft glue microphone, easy to bend and adjust the position. Endurance Time: Built in rechargeable 400mAh lithium polymer battery, the longest standby time can be up to 8 hours and universally compatible with most Bluetooth-enabled devices. Noise Isolation: The high sensitivity microphone delivers more accurate , clear and smooth speech. It can keep you away from the noise and immerse in music or gaming world. Specifications: Brand: Beexcellent Model: Q2 Bluetooth Version: Bluetooth 4.1 Frequency Response Range: 20 Hz- 20K Hz Operation Range: Up to 10 meters Microphone: Built-in high-sensitivity microphone (-38±3dB). Impedance: 32 Ω Sensitivity: 108±3 dB Battery: 400mAh Rechargeable Li-ion battery Standby Time: About 8 hours Charge Time: About 3 hours Charge Port: Micro USB Color: Black and Blue Main Item Size: 17.4cm * 7.6cm * 4.2cm / 6.85in * 3.1in * 1.65in Main Item Weight: 286g / 10.14oz Package Size: 20.6cm * 17.6cm * 9.3cm / 8.1in * 6.9in * 3.7in Package Weight: 442g / 15.62oz Package List: 1 * Headset 1 * USB Cable 1 * 3.5mm Audio Cable 1 * User Manual