VicTsing Bluetooth Earbuds, Mini Bluetooth Headset with Mic, Wireless Bluetooth 4.0 Earpiece for iPhone, Smart Phones, Tablets-Black Voice Command. Say "Yes" to answer and "No" to reject calls; for normal use, please speak out clearly and loudly Ergonomic Design. This upgraded mini Bluetooth headset is designed with an emphasis on ergonomics and designed into the shape which is inclined into your ear, bringing you brand-new wearing experience Great Performance. It only takes 2 hours fully charging time, up to 5 hours talk time, 80 hours standby time Wide Compatibility. Bluetooth 4.0 is fully compatible with most Bluetooth version device. Warranty:45 days money-back and 12-month, worry-free Guarantee