Features: 1. Dual Decoding Supports MP3, WMA, WAV, FLAC, APE Lossless Format Music; Supports Mmc/Sd/Mma And Other Cards, And Supports Usb Interface (U Disk) 2. Power: 2 x 10W; Power-Off Memory Function; Buttons: Five-Button Multi-Directional Control, Mic Pri / Mode / Previous Song / Auto / Next Song 3. Support Bluetooth Function, Bluetooth Version 5.0; Support 10-Meter Distance Infrared Remote Control Operation; Voltage Range 3.7v-5v, Current Less Than 2a 4. Support Recording Function; Support External Audio Source Input Line In Digital Color Screen Display; Supports Fm Radio And Frequency Band (87.5mhz-108.0mhz); Description: 1. Model: JQ-D137BT (power: 2 x 10W, with microphone function) 2. Function introduction: Zhongke Nanxun solution, power 2 x 10W / dual decoding MP3, WMA, WAV, FLAC, APE lossless format music / microphone function / recording function / reading USB disk / reading TF card / radio FM / external audio source Input LINE IN / infrared remote control / power off memory power / voltage 3.7V-5V; 3. Shell size: approx. length 124 x width 57MM; depth: 30MM 4.Battery Model: Lithium Batteries (not included) Material: ABS Color as shown Style: B The appearance, color and printing of the product may vary from batch to batch, but it will not affect the use Package Contents: 2 x Bluetooth Mp3 Decoder Board 2 x Remote Control 2 Set Of Cables 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.