Advanced Bluetooth 5.4 Technology: Experience superior audio with the latest Bluetooth 5.4, ensuring faster, more stable connections for seamless streaming. Versatile 2-in-1 Functionality: Effortlessly switch between transmitter and receiver modes to suit all your audio needs, whether on a flight or with your TV. Universal 3.5mm Jack Compatibility: Perfect for use with any device featuring a 3.5mm audio port, making it ideal for flights, home entertainment systems, and more. Compact and Portable: Designed for easy transport, this adapter fits perfectly in your pocket or travel bag, making it an essential accessory for your audio setup. Product Name: Bluetooth Receiver/Transmitter Model: M33 Bluetooth Version: V5.4 Power Input: DC 5V Transmission Range: 15m (Unobstructed) Charging Port: Type-C Battery Capacity: 180 mAh Function: Bluetooth Receiver/Transmitter Plug: 3.5mm AUX Port Compatible Devices: Mobile Phones/Tablets/Computers//Speakers Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: Black Material: ABS Package Contents: 1 * Wireless Bluetooth Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.