Product Name OMS-M3 Bluetooth 5.4 Receiver Main features The product has a beautifully designed appearance. ◆ Designed with Bluetooth 5.4 chip, it has stronger compatibility and stability. ◆ Bluetooth receiver (RX) Upgrade NFC function, connect your phone with just one touch. Cool breathing light, signal source indicator light is clear and visible, soft and not dazzling. ◆ Built in 500mAh rechargeable lithium battery, allowing continuous listening to music for up to 10 hours Supports USB (USB flash drive) and TF card playback. ◆ Supports 5-8 meter infrared remote control, with all kinds of functions available. ◆ Built in high-definition microphone, supports wireless listening, hands-free calling, and navigation. The product connection is simple, without any complicated drivers or downloading apps; Product parameters Product Model: OMS-M3 Bluetooth version: Bluetooth V5.4 Supporting Protocol: A2DP AVRC Working frequency band: 2.402GHz -2.480GHz Power level: Power level 2 (Class II) Sensitivity: -85dBm<0.1% BER Signal to noise ratio: ≥ 90dB Distortion: ≤ 0.1% Interface type: Input: BT+USB+TF Interface output: 3.5mm AUX+RCA Supported formats: 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: approximately 500mA Charging time: approximately 1.5 hours Listening time: about 10H Bluetooth distance: ≤ 20M (open space) Charging method: Micro USB 5V/0.5A Compatible devices: Android, iOS system phones and PADs, active speakers, amplifiers and other playback devices Product size: 98 * 67 * 23mm (length * width * height) Product weight: 120g Packaging size: 120 * 100 * 40mm (length * width * height) Complete weight: 177.2g Color box Packing list: Bluetooth adapter host x1 Type-C charging cable x1 3.5mm audio cable x1 Red and White RCA Lotus Line x1 Infrared remote control x1 Instruction manual x1 (Chinese/English optional) Packaging box x1 (Chinese/English optional)