Fantronics Wireless Bluetooth Headset Headphone, Bluetooth Stereo Headset with Removable Replaceable Battery for iPhone Android Smartphone (Golden) Configure 2 replaceable battery ,up to 6 * 2 hours talk time and 7 days standby .View headset battery status on your iphone Newest Cool Design --- This Sci-Fi IronMan-shaped Bluetooth Headset is a combination of Clear Voice ,Built-In Microphone,Multipoint Function and comfortable fit in order to give you a unique high quality Bluetooth headset Multi-function Control: Power-on/ Power-off / Pairing / Answering Calls / Hanging up / Redialing /Dialing / Rejecting Calls / Playing music/ Pause Connect Two Devices at The Same Time --- Pair it with two Bluetooth-enabled devices at the same time and don't miss your calls when you have two cell phones Comfort -tested for extended wearing , the flexible materials and balanced lightweiht design is also durable enough to withstand daily wear and tear