Features: brand new and high quality Suitable for controller handle with headphone jack, easy to install, plug and for play. EQ audio switching, one-key mute, built-in microphone function, can realize one-key five kinds of sound switching. Physical volume plus and minus buttons for easier control, dedicated audio chip, clear sound without distortion, enjoy more realistic sound quality. One-click listening mode, dedicated for FPS games, amplifying the sound source, listening to the sound and distinguishing position, one step ahead. Built-in 500 mAh polymer battery, long service for time up to about 8h. Specifications: Model: MC-P5007 Battery Capacity: 500mAh Material: Plastic Size: Approx. 5.1x5.3 for cm/2.01x2.09 inch Applicable Model: Suitable for Color: Black/White(Optional) Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece Sound Enhancer