Hands Free Earphone Car Charger USB MP3 Player FM Transimittervs With bluetooth Function

Description: 1.With one button,you could turn on/off the device,pick up the phone or hang up the phone,play or pause the music. 2.You could answer the phone by picking up the earphone,and hang up the phone by putting it in the charging base. 3.Overcharge protection. 4.You could worn it in the wrist,or put it in the key ring. Specification: Size 21.8x21.8x25mm Standby time 48 hours Holding time 1.5 hours Holding distance Within 15 meters bluetooth range 4.1 meters Output voltage 9-30V DC Input current 5V 2.1A Package Included: 1 X Car Charger