[2-in-1 Bluetooth Audio Adapter] This Bluetooth audio transmitter has two usage modes: 1. In TX mode, the Bluetooth transmitter uses a 3.5mm (AUX/) cable to connect an audio source (TV/MP3 player) without Bluetooth functionality to speakers/headphones/hearing aids with built-in Bluetooth functionality. 2.In RX mode, the Bluetooth receiver can transmit audio from smartphone to wired speakers/car audio input ports/headphones by receiving Bluetooth from smartphone. [V5.4 Chip High Fidelity Audio]This Bluetooth adapter, low latency technology provides clear, distortion free digital sound and low latency through devices that support , and is equipped with a Bluetooth V5.4 chip to achieve stable connections, wide signal range, fast transmission, and reduce power consumption. You just need to pair it with an audio source to start listening to your favorite music! [HD Display & Dual-Link Bluetooth Receiver]The bluetooth transmitter and receiver features an HD status display for real-time updates. It can connect two headphones simultaneously for shared audio. This airplane headphone adaptor bluetooth is compatible with any 3.5mm AUX and Type-C device for easy, hassle-free connection. [Wide Compatibility] This Bluetooth transmitter receiver used in cars is compatible with most devices on market, such as televisions, car stereos, home stereos, headphones, audio music streaming systems, speakers, PCs, MP3, and other devices. [Convenient To Carry&Practical] This aux Bluetooth adapter for car adopt latest and Bluetooth chips, and ultra compact design space. When you want to watch TV, your family or partner, and others want to sleep, this adapter can help you very well. Color: Black & Space Gray Material: plastic+metal Package Contents: 1 x Adapter 1 x Audio Adapter 1 x USB Charging Cable Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.