Fangrui Product Details Charging Interface:type-c Does Not Support Fast Charging Adapter Technology:a2dp or avrcp or hfp or (receiver Mode Only) Bluetooth:5.3and Interface:aux, Type-c Battery:built-in 300 Mah Polymer Battery Bluetooth Distance:10 Meters Without Barriers Charging Time:1-2 Hours Usage Time:8-10 Hours Microphone:rx And Fm Modes Support Answering Calls, Tx Mode Does Not Support It Colour:white Material:abs Size:70x35.6x15.7mm Package Contents: 1 x Transceiver 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. Note: 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.