[Professional noise reduction technology] Built-in dual DSP noise reduction chips and , the sound card voice changer has dual DSP noise reduction chips to avoid the influence of current noise, high sound quality, and sing beautiful , Reverb () makes you is more charming. [Multiple effects, modes and game modes] 6 mode , 12 electronic effect , 15 atmosphere sound effects, 7 different game modes, 3 sound effect transitions [Multi-device support] Suitable for dual mobile phone live broadcast, mobile computer live broadcast simultaneously, one computer live broadcast, computer accompaniment mobile phone live broadcast, meter input mobile phone live broadcast. [Multi-] Home Karaoke, voice chat, Live, , Periscope, Livestream, , WeChat, Smule, etc., plug and play. Specifications: Appearance craft: metal craft Working environment: temperature 0~60 Bluetooth version: V5.0 Built-in battery: Li-ion 1000mAh/3.7V Multi-speaker mode: 2.0 Charging time: about 5 hours Charging: 5V-1A Output adoption rate: 48KHz Number of bits used: 16bit colour: black Material: metal size: 135 x 105 x 21m Package Contents: 1*Sound card 1*data cable 2*Audio cable Only the above package content, other products are not included. Note: Light 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.