Features: brand new and high quality Bluetooth: Support Bluetooth-compatible 4.0, accompaniment music can be transferred via mobile phone, free from the shackles of wires. Noise Reduction: With for smart noise control chip, audio processing is faster and more stable, make the input sound voice more clear, and there is no lag. Applicability: It can be used for DJ, music studio recording, online, podcast, singing, k song, live stream, online chat, etc. A variety of live control sound effects, sound modes and adjustments, professional control, easy to use. Simultanuous Connection: Support to connect 2 mobile phones or computers at the same for time. Portability: It's the same size as a mobile phone, easy to carry. Built-in rechargeable battery, you can continue to live to reach more than 5-8 hours. Specifications: Type: Live Sound Card Material: ABS Item Color: Black Built-in Battery Capacity: 500 mAh Bluetooth-compatible Version: 4.0 Working Time: 5-8h Size: 15.7x7.8x1.5cm/6.17x3.07x0.59 inches Approx. Weight: 315g/11.11oz Package Includes: 1 Piece Sound Card note: 1.Please allow slight inaccuracy due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.