Features:
Bluetooth 5.1 chip design, with stronger compatibility and stability.
Bluetooth reception (RX) and Bluetooth transmission (TX) in one.
Equipped with a high-definition LED digital display screen, the working status and Bluetooth mode are clearly visible.
Built-in DSP decoding chip, heavy and low sound effect, supporting adjustable three-gear gain.
Upgrade the NFC function, and the phone senses one-touch connection.
Controllable indicator light, soft and not dazzling, and the brightness of the light increases/decreases with the volume.
Built-in 1200mAh rechargeable lithium battery, continuous listening to music for about 8 hours, with a battery life of up to 30 days
Support USB flash disk/TF card playback and transmission, and support MP3/WMA/SBC/WAV/DTS/A52/FLAC/AAC/AIF/AMR/APP format.
Built-in 6.5mm high-definition microphone hole, supporting microphone access for singing, and built-in anti-howling design.

Specifications:
Bluetooth version: Bluetooth V5.1
Support protocol: A2DP/AVRCP/HFP/SBC
Frequency: 2.402GHz -2.480GHz
Sensitivity: -85dBm<0.1%BER
Signal-to-noise ratio: ≥ 90dB
Distortion: ≤ 0.1%
Input: 3.5mm AUX+RCA+USB+TF card+6.5mm microphone+digital optical fiber+digital coaxial
Output: 3.5mm AUX+RCA
Support: MP3/WAV/WMA/APE/FLAC/G729/M4A/ALAC/AMR/DTS/MIDI/G726/MTY
Built-in battery: 3.7V/1200mAh
Charging current: about 1000mA (MAX)
Charging time: about 1.5 hours
The battery life: RX is about 8H, TX is about 8H
Bluetooth distance ≤ 30M (in an open area)
Charging: Type-C 5V/1A
Compatible device phones and tablets, active speakers, power amplifiers, desktop computers, mixers, televisions, song machines, etc

Pacakage includes:
1* Receiver Transmitter Audio Adapter
1* Remote Control
1* Type-c Charge Cable
1* RCA Cable
1* Audio Cable