2-In-1 Bluetooth 5.4 Transmitter & Receiver AUX Car/Travel Adapter with 3.5mm Jack, TF Card Slot, Lapel Clip Design

1. This 2-in-1 Bluetooth 5.4 Transmitter & Receiver is a versatile audio adapter designed for car, home, and travel use. It supports AUX 3.5mm devices, TF card playback, and dual-mode operation (transmit/receive) for seamless wireless audio streaming.
2. Dual Mode Functionality:
--TX Mode: Transmits Bluetooth audio to wired speakers or amplifiers.
--RX Mode: Receives Bluetooth signals from devices (e.g., smartphones) for wired audio output.
--TF Card Mode: Directly plays music files (MP3/WMA/APE/WAV/FLAC) from a microSD card.
3. High-Resolution Audio: Delivers clear sound with high-fidelity decoding.
4. Built-In HD Display: Shows real-time status (battery, mode, connection).
5. Lapel Clip Design: Portable and lightweight for easy attachment to clothing.
6. 400mAh Rechargeable Battery: Up to 20h in RX mode / 15h in TX mode.
7. Noise-Reduction Microphone: Supports hands-free calls with enhanced voice clarity.
8. Wide Compatibility: Works with TVs, cars, headphones, speakers, and amplifiers via 3.5mm AUX.

Parameters:
1. Function: receiving/transmitting/TF card playback (TF card not included)
2. Material: ABS
3. Size: 63 x 31 x 23mm
4. Battery capacity: 400 mAh
5. Charging interface: Type-C
6. Charging time: about 2 hours
7. Input power: DC 5V 1A
8. Bluetooth version: V5.4
9. Transmission distance: 10m