Features: Audio Card Sound Changer: Change your voice anytime, anywhere, call with friends, chat on for WeChat, live and sing, etc. One-click male voice becomes female voice, one-click female voice becomes male voice. Can be plugged into the computer phone to use. It is more fun to interact with teammates anytime, anywhere while playing games. 4 sound effects and 4 voice changes. Specification: Signal ratio: 106DB Dynamic range: 106DB Battery capacity: 300MA/3.7V Charging input: DV5V/1A Battery energy: 3.7/WH Battery life: Paly 3-4 hours when fully charged Size: Approx. 7.5 x 3.5 x 1.1cm / 2.95 x 1.38 x 0.43inch Package Weight: Approx. 107g Package list: 1 * Audio Card 1 * Charging Cable 1 * 3.5mm Cable 1 * Instruction Manual Note: 1. Due to manual measurement, please allow 1-3mm to be different. 2 Due to the difference in display and lighting, the picture may not display the actual color of the item. thank you for understanding.. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 4. The product needs to be equipped with a 3.5mm wired headset with microphone to receive sound. 5. You need to buy a for PHONE interface to 3.5mm headphone adapter for PHONE to use.