If you need a password to connect to Bluetooth, enter 0123 QCC5125 version: Bluetooth 5.1, support and -HD and LDAC, support for An Chuo and mobile phones, the highest transmission reaches 96K 24BIT Bluetooth receiving solution: QCC5125 Decoding chip: ES9023 Support mode: Dual lossless -HD LDAC Supports voltage: AC 7-12V or DC 10-15V Pin distance: 2.5MMX6 note: Depending on the batch, the components on the module may be different from the pictures, but the functions are the same and do not affect use. Material: PCB+electronic components colour: green Package Contents: 1 x decoding module With antenna 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.