Features: 1.High Quality Sound: Anti- Plug, More Sensitive Conduction, High-Fidelity Design, No Noise Or Current, No Loss Of Sound Quality, No Distortion Of Sound. 2.Strong Compatibility: Just Plug And Play, Mobile Phone/Computer Universal, Support Mainstream ,For Win/Formac/For Android/For Ios. 3.Work With 2 Devices Meanwhile: Support Simultaneous Connection Of 2 Mobile Phones Or Computers. 4.Noise Reduction Chip: Equipped With An Intelligent Noise Reduction Chip, Which Can Further Filter The Noise That Has Been Recorded, And Perform Secondary Noise Reduction Processing To Make The Sound Input To The Sound Card Clearer And Realize The Clear Recording Of The Singing Voice. 5.Long Standby: Built-In -Capacity Battery, Long-Term Battery Life, The Sound Card Can Be Used For Up To 6-8 Hours Under Full Power, Ensuring A Live Broadcast Process And A Sense Of Experience. Description: 1. Size: 15.7 x 7.8 x 1.5cm 2. Frequency Response Range: 60HZ-15KHZ 3. Whether There Is A Built-In Battery: 1000mah Built-In Lithium Battery 4. Model: V300 Pro 5. Applicable: Home, Computer, -1, Recording Special 6. Signal-To-Noise Ratio: 70db Material: ABS+plastic colour: black Package Contents: 1 x English Version Sound Card 1 x English Manual 1 x Color Box 1 x Charging Cable 1 x Live Broadcast Cable 1 x Accompaniment Line Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.