iKross Wireless Bluetooth Handsfree Headset Silver/Black For iPhone 6 / 6 Plus / 5 / 5S, Samsung Galaxy S5 Active, Galaxy S5, Galaxy S4, Galaxy Note 4 Note 3 Note 2, Galaxy Mega 6.3 and More Cellphone Smartphones Answer / End / Reject call, Comes with On/Off button. Last number redial Voice dial activate (when supported by mobile phone), Mute/Volume Control, Call waiting, Transfer a call between mobile and headset, Includes AC power adapter Bluetooth 4.0, Operation Range: 10 meters or 30 feet (extended), Talk time: up to 5 hours Standby time: up to 120 hours, Charging time: 2.5 - 4 hours, Battery: Rechargeable Lithium-Ion battery Size: 58 x 20 x 10 mm, Weight: 4g, BQB, FCC, CE and RoHs approved