Universal Cassette Bluetooth 5.0 Audio Car Tape Aux Stereo Adapter with Mic for Phone MP3 Player This cassette adapter features built-in Bluetooth 5.0 technology, allowing you to insert it into your car's cassette player and wirelessly connect to your smartphone via Bluetooth to stream music or make hands-free calls. Enjoy instant wireless audio playback and convenient calling without holding your phone while driving. Equipped with a built-in microphone, the adapter supports one-touch answering and ending of calls, providing safe and easy hands-free communication. Powered by the latest Bluetooth 5.0 chip, it delivers stable connectivity, improved signal transmission, better sound quality, wider device compatibility, and enhanced performance for clear, continuous stereo audio and voice calls. The device includes a USB port and a built-in 130mAh rechargeable battery. It can be charged anytime using a power bank, laptop, or any standard USB charger, ensuring reliable and long-lasting operation. Ideal for use in cars, trucks, or other vehicles with a cassette player, this adapter brings modern Bluetooth functionality to older audio systems. - Bluetooth Version: 5.0 - Power Supply: USB - Battery: Built-in 130mAh rechargeable battery - Dimensions: 10 x 6.3 x 0.7 cm (3.93 x 2.48 x 0.27 inches) - Weight: 62g - Color: Black (ABS material) Package Includes: 1 x Cassette Adapter 1 x USB Charging Cable Note: This package includes only the items listed above. Other accessories are not included. Due to lighting effects and monitor settings, actual product color may vary slightly from images. Measurement error is allowed within +/- 1-3 cm.