M9 Pro Bluetooth 5.3 Audio Receiver Transmitter 3.5mm Aux Wireless Music Adapter

M9 Pro Bluetooth 5.3 Audio Receiver Transmitter 3.5mm Aux Wireless Music Adapter U Disk/TF Card FM Radio Player DAC Converter Product model: M9 Pro Bluetooth version: Bluetooth V5.1 Support protocol: A2DP/AVRCP/HSP/OPP/GATT/SM Working frequency band: 2.402GHz -2.480GHz Power level: Power level 2 (Class II) Sensitivity: -85dBm Signal-to-noise ratio: ≥90dB Distortion: ≤0.1% Input interface: 3.5mm AUX RCA FM USB TF interface 6.5 MIC Output interface: 3.5mm AUX RCA Radio parameters: FM 87.5-108MHz Support format: MP3/WAV/WMA/APE/FLAC/G729/M4A/ALAC/AMR/DTS/MIDI/G726/MTY Screen size: 36*8MM Working current: Built-in battery: 3.7V/1200mAh Charging current: about 1000mA (MAX) Charging time: about 1.5 hours Battery life: RX about 8H, TX about 8H Bluetooth distance: ≤30M (open place) Charging method: Type-C 5V/1A Compatible devices: Android, IOS system mobile phones and PADs, active speakers, power amplifiers, and Bluetooth speakers or earphones that support A2DP/protocol. Specifications: The appearance of the product is exquisite, exclusive private model, including appearance design . Adopt Bluetooth 5.1 chip design, stronger compatibility and stability. Two-in-one Bluetooth receiving (RX) and Bluetooth transmitting (TX). Equipped with a high-definition LED digital display screen, the working status and Bluetooth mode are clearly visible. Built-in DSP decoding chip, heavy bass effect, the device supports treble/bass button adjustment. Upgrade the NFC function, and the mobile phone sensor can be connected with one touch. Controllable indicator light, soft and not glaring, the brightness of the light increases/decreases accordingly with the volume. Built-in 1200mAh rechargeable lithium battery, continuous listening to music for about 8 hours, battery life up to 30 days Support U disk/TF card playback and launch, support MP3/WMA/SBC/WAV/DTS/A52/FLAC/AAC/AIF/AMR/APE format. Built-in FM radio, one-button automatic search and storage, the frequency c