GSWORDY Ultralight Wireless and Handsfree Bluetooth Headset, 24 Hours Talk Time, 22 Hours Music Play Time (Black) Long lasting battery life, up to 22 hours music play time, up to 24 hours talk time, up to 30 days standby time. Comfortable fit, best disigned for the most comfortable fit in either ear, the 360 adjustable ear hook allows you to adjust the angle and fit this headset in your right ear or left ear. Bluetooth CSR 4.0 Technology, provide stable signal wideband audio supported, compatible with Apple iPhone 7/6/5s/5c/5, iPhone 4s/4, Samsung Galaxy S5/S4/S3, LG, PC Laptop, and other bluetooth device. Hands free calls, Built-in HD microphone let you take calls loudly and easily. With one USB earbud, link a headset to pair for two ears enjoy music.