GEARONIC TM 5899-Black-Ear_5416 Wireless Sport Stereo Headset Tooth Earphone Headphone for Android or iPhone, Black The latest Bluetooth technology: This headset utilizes Bluetooth Version 4.0+Edr for a quick connection, and reduced chance of lost connections. Long lasting: our headset gives up to 6 hours of play time, 10 hours of Talk time, and 10 days of standby time. Versatile: this Bluetooth headset can be used with any smart phone-it pairs easily to both Android and iPhone. You can listen to music or conduct a private phone call. Smart design: the headset has a unique neck strap design that is ultra-lightweight at just 32 grams. It has vibration alerts for incoming calls, and includes easy magnetic earphone storage. Customer satisfaction: if youre not 100% satisfied with our wireless headset, you can return it for a full refund, no questions asked! We take pride in our customer service, and we will do whatever it takes to make you happy.