Bakeey M6 3 in 1 NFC bluetooth Receiver Adapter 500mAh With Remote Control for USB... (COLOR: BLACK)

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Features: -Upgrade the NFC function, the mobile phone can be connected with one touch. -Cool breathing light, red/blue color, soft and not dazzling. -Built-in 500mAh rechargeable lithium battery, long battery life -Support USB (U disk), TF card playback and transmission. -Support FM transmission, and the frequency can be adjusted from 87.5 to 108. -Support 5~8 meters infrared remote control, all kinds of functions are readily available. -Built-in high-definition microphone, support wireless music listening, hands-free call, navigation. -The product connection is simple, without any cumbersome driving and downloading APP;
Specification: bluetooth version: bluetooth V5.0 Support protocol: RX:A2DP AVRCTX:A2DP Working frequency band: 2.402GHz-2.480GHz Power level: Power level 2 (Class II) Sensitivity: -85dBm<0.1%BER Signal to noise ratio: a???90dB Distortion: a???0.1% Interface type: Input: 3.5mm AUX+RCA+optical fiber Interface output: 3.5mm AUX+RCA Optical parameters: support optical input, 16M, sampling rate 99kHz Support format: MP3/WAV/WMA/APE/FLAC/G729/M4A/ALAC/AMR/DTS/MIDI/G726/MTY Screen size: 36*8MM Working current: <40mA Built-in battery: 3.7V/500mAh Charging current: about 400mA Charging time: about 2 hours Life time: RX about 10H, TX about 8H Bluetooth distance: a???10M (open place) Charging method: Micro USB 5V/0.5A
Package Included: 1 * bluetooth Adapter?? 1 * Micro USB charging cable?? 1 * 3.5mm Audio Cable?? 1 * Red and white RCA lotus line?? 1 * Manual??