2 in 1 Bluetooth adapter: Bluetooth adapter for tv can be used as the transmitter or the receiver. The portable bluetooth adapter can be used as the transmitter or the receiver. It is ideal for music streaming at home or in the vehicle. Bluetooth 5.0 version: The adapter fast thanks to Bluetooth 5.0, the Bluetooth signal is more stable and faster, simple pairing and good anti-interference performance, more fun to use, you can enjoy music and hands-free call with high quality sound Plug & Play: Super easy to use on a PC or laptop, no external drivers need to be installed. Slide the button on the right side to switch RX and TX mode, very easy to use is compatible with Android iOS, Windows 7/8/8.1/10, TV, MP3, MP4, iPhone, iPad, bluetooth speaker, bluetooth earphone/headset, car radio, old stereo and so on. Transmission mode: Connect devices without Bluetooth function to Bluetooth-enabled wireless headphones and speakers via the Bluetooth transmitter. You can listen to late music or TV shows without disturbing your lover, children or neighbors. Receiving mode: Bluetooth adapter can be used as a Bluetooth receiver for stereo systems other than Bluetooth (such as wired headphones or wired speakers). Pair the Bluetooth receiver with your mobile phone, then connect the wired earphones to the jack of the device. The 2-in-1 Wireless Bluetooth Audio Adapter is an audio solution wireless ideal for various applications. RX Receiver Mode As a Bluetooth receiver, Bluetooth adapter transforms your audio devices without Bluetooth (old top speakers, wired headphones, and car stereos) into Bluetooth-enabled devices. TX Transmitter Mode As a Bluetooth transmitter, Bluetooth adapter converts all non-Bluetooth-enabled audio sources ( TV, computer) to Bluetooth-enabled devices, so you can enjoy wireless audio with awesome sound quality using Bluetooth headphones. Simplifies surfaces and operations: Simplified design and buttons. There are only 2 buttons on the surface, one for multi-function and another for changing TX/RX mode. Button to switch between transmitter and receiver functions. 3.5mm Wireless Audio Adapter: Easy setup with cable 3.5mm audio. Supports aptx sound quality to retain more audio detail, low latency, which brings you HiFi and almost lossless sound. Product Specifications: Bluetooth version: Bluetooth 5.0 Bluetooth distance: 10M (free space) Built-in battery: 260mAh (charging time: about 1 hour) Playtime: 6 hours as receiver and 8 hours as transmitter. Charging Input Voltage: DC 5V (Note: Please do not use voltage higher than 5V to charge the device.) Package Contents: 1 x Bluetooth 5.0 2 in 1 Adapter 1 x 3.5mm Audio Cable 1 x USB Charging Cable 1 x User Manual