Fangrui Product Details Universal Compatibility: This Versatile Bluetooth 5.3 Adapter Seamlessly Integrates With Your Car Audio, Home Speakers, Headphones, And Even Your Tv Or Pc, Providing High-quality Wireless Audio Streaming. Advanced Bluetooth 5.3 Technology: Experience Superior Sound Quality And A Stable, Efficient Wireless Connection Thanks To The Latest Bluetooth 5.3 Technology. Compact Design: The Sleek, Portable Design Makes It Easy To Enjoy Your Favorite Music Wirelessly, Whether Or . Easy To Use: Simply Plug The Adapter Into Any Device With A 3.5mm Jack, Pair It With Your Bluetooth Device, And Enjoy Uninterrupted Audio Streaming. Charging Voltage: 5v Charging Current: 186ma Working Current: 20ma Shutdown Current: 47ua Charging Time: 2 Hours Working Time: Rx13h, Tx17h Battery Capacity: 240mah Bluetooth Version: Version 5.3 Bluetooth Transmission Distance: 10m In A Straight Line (the Product Appearance And Printed Words Depending On The Batch, But This Does Not Affect Use) Color: As Shown Material: Abs Package Conten