1. With hybrid noise reduction core, AI intelligent algorithm, effectively suppress noise, lossless transmission, intelligent beautiful voice, no stutter, delay fine adjustment of each tone, so that music enthusiasts can achieve a better experience 2. Wide range of smart compatibility, support 99% of APPs on the market, compatible with mobile phones, computers, and tablets 3. 16 kinds of effects atmosphere , 12-step electronic sound adjustment, professional-level electronic sound adjustment, set sound, different electronic sounds change different sounds 4. One-key switch of live broadcast mode, 6 professional modes, easy to deal with occasions and make you more professional in live broadcast 5. reverberation adjustment, knob design, professional reverberation adjustment, turning on reverberation can make the sound fuller and more three-dimensional, three-stage tuning for high, middle and bass Product name: live sound card Bluetooth version: dual-mode Bluetooth V5.0, compatible with Bluetooth V4.2 and V2.1+ Bluetooth protocol: support Piconet and Scatterner networking protocols, support A-2DP/AVRCP//SPP//GATT/ Signal to noise : greater or to 94dB Rated voltage: 3.7V Frequency range: 20Hz~20KH Charging voltage: 5V/1A Battery charging time limit: less than or to 6H Bluetooth distance: 8M Headphone impedance: 32Q +/- 5% Charging time: 3H Distortion: 0.05% or less Use time: 7.5H Standby time: 12H Channel system: dual channel Capacity: 1200mAh Power consumption: 220mA Output sampling rate: 44.1KHZ Sampling number: 16bit colour: black Material: ABS Size: 190x118x28mm Package Contents: 1 x Sound Card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.