[Professional noise reduction technology] Built-in dual noise reduction chips and , the sound card voice changer has dual noise reduction chips to avoid the influence of current noise, high sound quality, and sing beautiful songs, Reverb () makes you is more charming. [Multiple effects, modes and game modes] 6 mode options, 12 electronic effect options, 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-purpose] 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 21mm Package Contents: 1*Sound card 1*data cable 2*Audio cable 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.