LBell Bluetooth Headphone in Ear Wireless with EarHook Noise-isolating Headphones for iPhone Android & Other Bluetooth Devices (K1) Wonderful Amazing Design : Unique special shaped Strong Armor Design with HUMANIZED EARPIECE makes the microphone closer to the sound source, this Bluetooth headphone can give you a better phone call experience. Outstanding Audio Quality: Latest Bluetooth CSR V4.1 with Built-in HD , Multipoint Function makes you enjoy an impressively crystal clear sound quality and also delivers excellent transmission signal when you listening and calling , transmission distance up to 10meters generally , Perfectly Compatible with iPhone 6/5s/5c/5, iPhone 4s/4, Samsung Galaxy S5/S4/S3, LG, PC Laptop, and Most of Other Bluetooth Devices and Smartphones Long lasting With Dual detachable battery: 120mAhtotalbattery - Configure 2 replaceable battery can be detached and changed. Long Talking time up to 5 hours(One battery) excellent for driving, battery life will display on your phone when connected automatically . Much Comfortable & Durable&Convenient: With extra earhook and flexible materials and balanced lightweight design comfort your ears and also durable enough to withstand daily wear and tear 1 years warranty , 100% Money Back Guarantee Hassle-free Return