New Mini Bluetooth 4.1 Stereo In-Ear Headset Earphone Wireless Earbud Headphone<br /><br />Specification<br />Dual-mode Bluetooth V4.1・ ultra-low power consumption<br />Bluetooth frequency: 2.4GHZ<br />Support Agreement:A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3<br />Bluetooth transmission distance: 10 meters<br />Playing/Talking time: 5-6 hours<br />Standby time: 120 Hours<br />Battery capacity: 60MAH<br />Earpiece:Single