Features: ★2 IN 1 Audio Adapter: This adapter functions as both a receiver and a transmitter, allowing you to effortlessly switch between transmitting audio from your TV, PC, or other devices to your Bluetooth headphones or speakers, and receiving audio from your smartphone or tablet to play through your wired speaker ★Bluetooth 5.4 version: Experience high-quality audio transmission with minimal latency, thanks to advanced Bluetooth technology. Enjoy your favorite music, movies, and games with immersive sound quality. ★TF Card Player: Support max 64GB card, the music format is MP3/WMA/APE/WAV/FLAC ★Built-in 200mAh battery, our adapter offers 6 hours (after full charging)of uninterrupted playback time, ensuring you can enjoy your entertainment without interruption. ★Compatible with a wide range of devices including TVs, PCs, laptops, smartphones, tablets, and more. Say goodbye to tangled wires and enjoy wireless freedom with any audio source! Specifications: Product Name: Four-in-one wireless adapter Product model: GT69 Wireless version: Wireless 5.4 Transmission distance: Open area up to 10 meters long Power supply method: Type-C interface Bluetooth reception function Bluetooth transmission function Product size: (Approximately) 65mm x 32.2mm x 18mm Battery capacity: 200mAh Support TF card up to 64GB(not include TF card) Working hours: Full charge for approximately 6 hours Package Includes: 1*Bluetooth 5.4 audio adapter 1*User manual