When you have a vintage car with a tape player, the cassette Bluetooth receiver allows you to enjoy music from your phone without replacing or modifying the original o system. The cassette Bluetooth 5.0 receiver is compatible with most smartphones and works well with home or car o systems. This device enables Bluetooth connectivity for cars or o devices that do not have built-in Bluetooth. Adjust the o equalization settings on your player to enjoy high-quality sound. You can answer phone calls and control music playback directly from the receiver, including volume adjustment, play/pause, track skipping, and call answering. It supports smartphones, tablets, MP3 players, car stereos, headphones, Hi-Fi systems, portable speakers, and other devices equipped with standard Bluetooth technology. It delivers seamless stereo o transmission for an enhanced listening experience. The built-in rechargeable lithium battery provides up to 8 hours of playback and talk time, with 168 hours of standby time, and fully charges in approximately 1.5 hours. The premium chip ensures stable, fast transmission with low power consumption for superior o performance. Specifications: Color: Black Bluetooth Version: 5.0 Battery Capacity: 130mAh Package included: 1 x Cassette Adapter, 1 x USB Charging Cable