Features: brand new and high quality Low latency, for high fidelity, no noise, HIFI sound quality. Bluetooth-compatible 5.0 Chip Support Bluetooth-compatible reception, Bluetooth-compatible transmission, TF card playback; Support 3.5mm/2RCA input/output in two modes; Support NFC short-range pairing, NFC wireless connection during pairing; Built-in high-quality decoding chip, high-definition stereo sound quality; Long-Distance:10 meters long-distance transmission and reception distance. Interface:3.5MM AUX/RCA/ Audio Jack. Specifications: Output parameters: for DC 5V Material: ABS Bluetooth-compatible Version: 5.0 Interface: AUX+RCA+Audio Product size: 6.2x6.2x2cm/2.44x2.44x0.79in Transmission Distance: 10 meters without barriers Support Equipment: Mobile Phone/Tablet/Computer/Car Use/TF Card for Play, etc. Note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x NFC Bluetooth-compatible Adapter 1x Manual