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 listening experience<br> 2. Wide range of smart compatibility, support 99% of APPs on the market, compatible with mobile phones, computers, and tablets<br> 3. 16 kinds of special effects atmosphere sound effects, 12-step electronic sound adjustment, professional-level electronic sound adjustment, set personalized sound, different electronic sounds change different sounds<br> 4. One-key switch of live broadcast mode, 6 professional modes, easy to deal with occasions and make you more professional in live broadcast<br> 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<br> Product name: live sound card<br> Bluetooth version: dual-mode Bluetooth V5.0, compatible with Bluetooth V4.2 and V2.1+<br> Bluetooth protocol: support Piconet and Scatterner networking protocols, support A-2DP/AVRCP//SPP//GATT/SM<br> Signal to noise ratio: greater or equal to 94dB<br> Rated voltage: 3.7V<br> Frequency range: 20Hz~20KH<br> Charging voltage: 5V/1A<br> Battery charging time limit: less than or equal to 6H<br> Bluetooth distance: 8M<br> Headphone impedance: 32Q +/- 5%<br> Charging time: 3H<br> Distortion: 0.05% or less<br> Use time: 7.5H<br> Standby time: 12H<br> Channel system: dual channel<br> Capacity: 1200mAh<br> Power consumption: 220mA<br> Output sampling rate: 44.1KHZ<br> Sampling number: 16bit<br> colour: black<br> Material: ABS<br> Size: 190x118x28mm<br> Package Contents:<br> 1 x Sound Card<br> Only the above package content, other products are not included.<br> 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.