Description: 【Retractable Design】: The wireless earphone has a clip on the back which can be clipped on clothes or collars. The retractable single earbud can be stretched in the ear when you need it, decreasing the burden on the ears. 【Stable Connection】: The wireless headset provides a more stable connection up to 10m, with lower latency, faster paring and universal compatibility. Support to connect 2 phones at the same time, and the 2 phones can be switched at will. Memory pairing function, automatic connection back. 【HandsFree Calling】: Business headphone, built in high sensitive microphone, noise canceling technology, enjoy clear talking. Support incoming call number reports and vibration reminders. 【Long Standby】: The earpiece is built in 110mAh large capacity battery, USB rechargeable, long standby time of up to 200 hours, 12h talking time and 16h music playtime. LED digital display, real time understanding of the remaining power. 【Wide Application】: Compact and lightweight wireless earbud, easy to carry. Suitable for business, office, driving, etc. Specification: Product size: 2.7cmx1.7cmx5.4cm/1.06inchx0.67inchx2.13inch Material: Metal Effective distance: 10m Charging voltage: 5V 1A Charging time: 40 minutes Standby time: 200 hours Working hours: Talking 12h, music 16h Package Includes: 1 Wireless Earphone Note: Please allow slightly errors due to manual measurement and different monitors.