iKross Wireless Bluetooth Handsfree Headset with Boom Microphone - Black and Blue For iPhone 6/6 Plus, Smartphone and Tablet and more Ergonomically behind-the-ear style offers all-day comfort. Echo cancellation for enhanced voice clarity. On ear controls let you manage calls and volume all from the headset. Monitor headset battery level on your iPhone or iOS devices. Up to 5 hours of talk time and 180 hours of standby time.