2-in-1 audio converter, optical/coaxial audio conversion, Bluetooth audio reception.High-performance chips, low power consumption, long-term battery life and continuous line.Dual audio is output at the same time, and the signal can be switched freely.Three-dimensional high-definition sound quality, no delay or freeze, supports various formats for playback. Lightweight and small, easy to carry, small and beautiful.Support bluetooth mobile phones, bluetooth computers, , iPad, MID and other digital products with bluetooth function.Model: -M24Bluetooth-compatible version: Bluetooth5.0Support protocol: AVDTP1.3, AVDTP1.4, GVRAD1.3, A2DP1.3, HFP1.7, HSP1.2, AVRCP1.6Input: optical , coaxial, BluetoothOutput: 3.5mm, RCAPower supply: Mini DC 5V 1A Wireless version: BT 5.0Wireless distance: 10M, 3.6FTSensitivity: 94+3dbFrequency response: 20Hz -20KHzDistortion: Less than 0.1%Transmission rate: 3mbpsWorking frequency: 2.4mhzMaterial:plasticcolour:blackPackage Contents:1 x Bluetooth 5.0 audio adapter1 x Mini Power Cord1 x Coaxial Cable1 x 3.5mm to RCA Cable1 x Engliosh User ManualOnly 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.