Built-in 180mAh rechargeable lithium battery for up to 10 hours of continuous music playback, surpassing wireless headphones' durability. No need for frequent recharging, ensuring uninterrupted listening pleasure. Featuring an AUX universal interface, this Bluetooth-compatible receiver is compatible with all computer and audio devices without driver installations. Simply plug in the device to enjoy seamless connectivity and enhanced audio experiences across various platforms. This adapter excels at both receiving and transmitting signals within a single unit. Effortlessly switch between modes to cater to diverse devices, offering flexibility and convenience in signal transmission tasks. Equipped with a high-performance Bluetooth-compatible 5.3 chip, this receiver ensures stable and smooth connections, eliminating delays and stutters during media playback. Enjoy uninterrupted entertainment moments with enhanced connectivity. Transform your car speakers into Bluetooth-compatible devices for hands-free calls and navigation broadcasts. Experience amplified sound quality and clear calls on-the-go, enhancing driving safety while enjoying superior audio performance. Item Name: Car Receiver Material: ABS Bluetooth-compatible Solution: 5.3 Frequency: 2.4GHz-2.48GHz Bluetooth-compatible Transmission Distance: 15 Meters Bluetooth-compatible Receiving Distance: 15 Meters Battery Capacity: 180mAh Charging Time: 30 Minutes Play Time: Up to 10 Hours Features: Easy to Use, Practical, Long Lasting Size Details: L: 6cm/2.36", W: 2.2cm/0.87", H: 1.85cm/0.73" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Car Receiver 1 x Charging Cable 1 x 3.5 Audio Adapter 1 x Instruction Manual