[HiFi Stereo o] JOYROOM Bluetooth receiver features the latest Bluetooth 5.3 technology, improving connection stability and reducing transmission delay compared to older Bluetooth 5.0 versions. This Bluetooth 5.3 adapter delivers a faster, more stable, and efficient wireless connection with minimal o loss. Offers up to 100ft working range, suitable for everyday use. [Clearer Calls] The Bluetooth car adapter includes dual microphones that work together to capture your voice from 360°, enabling smoother通话. Enhanced CVC8.0 noise reduction technology and built-in filter IC effectively reduce road noise, electrical interference, and other background distractions, resulting in clearer hands-free calls for both parties. [Plug and Play] Simply plug into the 3.5mm auxiliary jack and power via USB port. After starting your vehicle, the Bluetooth car adapter automatically pairs with your phone. Supports simultaneous pairing of two devices, allowing seamless switching between music streaming and hands-free calling. [Multifunction Button & LED Light Design] The Bluetooth receiver features an independent control button that supports one-touch functions including track navigation, volume control, answering/ending calls, and redialing. Designed for ease of use, minimizing distractions for safer driving. Integrated LED light helps locate buttons in low-light conditions. [Multi Safety Protection] JOYROOM Bluetooth adapter complies with national quality standards and has passed FCC, CE, RoHS, and BQB certifications. Built-in protections include overvoltage, overcurrent, short circuit, and NTC overheating protection to ensure safe operation. Type: Bluetooth Adapter Color: Black Material: ABS+PC Size: 40.5mm x 45.7mm x 11.4mm Package Contents: 1 x Bluetooth Adapter Note: Light reflection and display differences may cause slight variations in color as seen on screen.