HTRise Bluetooth Headset, Wireless Bluetooth 4.1 HD Stereo Headphones Ultra-long standby: battery capacity,16-18 Hours Listening / Talking Timestandby time of about 1000H, is the same type of ordinary Bluetooth headset 3 times, let you follow the songs, pot phone, reduce the frequent charging troubles! Hi-Fi Stereo Sound: Adopts CSR chip, Bluetooth 4.1 smart compatible Bluetooth devices, Built-in HD Microphone with CVC6.0 noise cancellation,ensure Hi-Fi Stereo Music Sound and Strong Signal. Let you get high quality and clear voice even in noisy environment such as inside a gym,running,driving etc. Main Specs:16-18 Hours Listening / Talking Time,1000 Hours standby time,about 2.5 hours charging time, 10 meters rangeNo obstructions, Smart LED indicator, Ultra light, sweatproof and anti-dropping, perfect for sport. Connect to 2 bluetooth Devicessupport two mobile phones in turn call and listen to music, so you will not miss any phone and information Smart Voice Answer: yes / answer, no / reject providing great convenience for you. Bluetooth EDR APT-X audio decode technology, offering you stable signal and perfect stereo sound. Compatible with most iOS/Android Mobile Phones & Pc Laptop.The use of 260MA polymer lithium battery, comes with protection board function to prevent the potential risk of overcharge and over discharge