Features: brand new and high quality Bluetooth-compatible 5.0 version . A2DP / AVRCP bluetooth-compatible protocol. 3.5mm AUX / 2RCA / COAXIAL / Optical Input Interface. Used for bluetooth-compatible reception, Bluetooth-compatible start, u-disk for play, TF card card for play, infrared remote control, for key operation, digital / coaxial fiber input, NFC. for most kinds of speakers, desktop computer, laptop, TV, power amplifier, projector. Specifications: Product Name: NFC Multi-function Bluetooth-compatible Adapter Product version: Standard / remote control Product model: M8 / M6 Bluetooth-compatible version: Bluetooth-compatible V5.0 Battery: 3.7V / 500mAh Usage time: listen to music for about 10 hours and standby for 30 days. Transmission range: 10m (without barrier) Interface: 3.5mm AUX / 2RCA / COAXIAL / Optical Input parameter: for DC 5V-2.1A (max.) Support protocol: A2DP / AVRCP Product dimensions: approx. 92x65x20mm/3.62x2.55x0.78in Use method: no drive Product material: high strength fire retardant PC Package Includes: 1PC x Bluetooth-compatible adapter 1PC x 3.5MM cable 1PC x 3.5mm RCA cable 1PC x Micro USB cable 1PC x Remote control 1PC x user manual 1PC x retail package note: Please allow 0-1cm 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. Thank you!