Model: R20 Bluetooth Adapter Interface: TYPEC Power Supply, AUX/RCA Output Plug And Play: Plug And Play External Power Supply: Yes Transmission Rate: 80M (Mbps) (Mbps) Effective Working Radius: 10 (m) (m) Bluetooth-compatible Standard: 5.3 Working Frequency: 2.4G (MHz) (MHz) Specifications: 1. Lossless HiFi Wireless Audio Receiver, Plug And Play, Turns Wired Speakers Into Bluetooth Speakers In Seconds. 2. Made Of PC Fire-retardant Material, It Is Safer And More Reliable To Use. Version 3.5.3, Stable Performance, Sound Quality Brings You Better Listening Enjoyment. 4. Dual Output Interface Design, 3.5andRCA Dual Audio Port, Suitable For A Variety Of Devices. 5. Upgrade The Cars Bluetooth Speaker, Plug It Into The Cars AUX And Use The Mobile Phones Bluetooth To Connect To Listen To Music Wirelessly, Making The Cars Audio More Exciting. 6. Compatible With 64GB USB Flash Drive, Multi-format Support, Memory Playback, Easy To Use. Package Included: 1 Set x (1 Car Audio System, 1 Manual, 1 Power Cord, 1 Audio Cable)