Fangrui Product Details Advanced Bluetooth 5.0 Technology: Experience Superior Sound Quality With The Fly01 Bluetooth Transmitter, Featuring The Latest Bluetooth 5.0 For A Stable And Swift Connection. Hd Support: Enjoy High-definition Audio With The Hd Support, Ensuring You Hear Every Detail In Crystal Clear Quality When Connected To Compatible Devices Versatile 3.5mm Jack: Easily Connect To A Variety Of Audio Sources Including In-flight Entertainment Systems, , And More, Thanks To The Universal 3.5mm Jack. Compact And Portable: Designed For Travelers, This And Compact Transmitter Is Your Audio Companion , Ensuring You Miss A Beat. Color: Black Material: Abs+pc Package Contents: 1 X Fly01 Bluetooth 5.0 Transmitter Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.