When you have a vintage car with a tape player, the cassette Bluetooth receiver allows you to continue enjoying the music on your phone. You don't need to replace or renovate your car to avoid destroying its original classic look. - The cassette Bluetooth 5.0 receiver is compatible with most smartphones and is ideal for home or car stereo systems. This is a box-type Bluetooth receiver for cars or devices that do not have Bluetooth and want to receive Bluetooth signals. Just adjust the audio equalizer settings on the player and you'll get music classics. - You can answer calls or control music on the receiver. Change volume, play/pause/skip music, answer calls. Supports all phones, tablets, MP3 players, car stereos, headphones, Hi-Fi, portable speakers, or other devices equipped with standard Bluetooth technology. Seamlessly transmits stereo sound for high-quality audio, allowing you to enjoy your music anywhere, anytime. - Built-in battery provides up to 8 hours of playtime and talk time, 168 hours of standby time, only takes 1.5 hours to fully charge. Premium chip provides more stable and faster transmission with lower power consumption, which can provide superior sound performance that spoils your ears and never feels tired while driving. Specifications: Color: Black Bluetooth version: 5.0 Rechargeable battery (lithium battery): Rechargeable battery capacity: 130 mAh Package includes: 1 x Cassette adapter 1 x USB charging cable