1、With a 2‑in‑1 design, it can be used as a transmitter and receiver, and is widely applicable to devices with 3.5 mm auxiliary jacks. 2、TX mode: Audio is transmitted from non‑bluetooth devices to bluetooth headsets, etc. RX mode: transfer from mobile phones, tablets, etc. to home audio and cars. 3、The signal transmission is strong, and the transmission range can up to about 10m / 32.8ft when there are no obstacles. 4、Using low‑latency technology, it can provide you with perfectly synchronized stereo sound effects and bring you an excellent listening experience. 5、Use a 3.5mm audio cable to connect this transceiver to your device, and you can enjoy CD‑like sound effects. 6、The built-in rechargeable battery can last for about 10 hours, and it supports charging and playing to ensure uninterrupted use. 7、Small size and light weight make it more space-saving and portable. Although small in size, it has strong performance. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store