1. With hybrid noise reduction core, AI intelligent algorithm, effectively suppress noise, innovative digital lossless transmission, intelligent beautiful voice, no stutter, delay fine adjustment of each tone, so that music enthusiasts can achieve a better listening experience2. Wide range of smart compatibility, support 99% of APPs on the market, compatible with mobile phones, computers, and tablets3. 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 sounds4. One-key switch of live broadcast mode, 6 professional modes, easy to deal with various occasions and make you more professional in live broadcast5. Independent reverberation adjustment, large knob design, professional reverberation adjustment, turning on reverberation can make the sound fuller and more three-dimensional, three-stage tuning for high, middle and bassProduct name: live sound cardBluetooth version: dual-mode Bluetooth V5.0, compatible with Bluetooth V4.2 and V2.1+EDRBluetooth protocol: support Piconet and Scatterner networking protocols, support A-2DP/AVRCP//SPP//GATT/SMSignal to noise ratio: SNR greater or equal to 94dBRated voltage: 3.7VFrequency range: 20Hz~20KHCharging voltage: 5V/1ABattery charging time limit: less than or equal to 6HBluetooth distance: 8MHeadphone impedance: 32Q +/- 5%Charging time: 3HDistortion: 0.05% or lessUse time: 7.5HStandby time: 12HChannel system: dual channelCapacity: 1200mAhPower consumption: 220mAOutput sampling rate: 44.1KHZSampling number: 16bitcolour: blackMaterial: ABSSize: 190x118x28mmPackage Contents:1 x Sound CardOnly 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.