Xseries&trade; Universal Hv-800 Wireless Music A2dp Stereo Bluetooth4.0 Headset Universal Vibration Neckband Style Headset Earphone Headphone for Cellphones Such As Iphone, Nokia, Htc, Samsung, Lg, Moto, Pc, Ipad, PSP and so on & Enabled Bluetooth (black, HV-800) Comfortable,flexible and light neckband made of ultra-light shape memory alloy. Easy to handle ear set with magnetic properties. Using the world famous brands CSR4.0 Bluetooth Stereo Bluetooth chips Extended battery life !-Talk/Standby/Music Play Time : Up to 15 / 500 / 10hours Music play time: Up to 8 Hrs. Charging time: &lt;2.0Hrs. Operation temperature: -10 to +60. Size: 17cm x 14cm - 6.69inch x 5.51inch. Compatible with most cellphone and devices with bluetooth capabilities.High quality soud with HD speaker and enhanced BASS effect. CD quality sound with apt-X codex support. HD quality calls with VoLTE(voice over LTE) support. Stereo Bluetooth headset for wireless music plus call functionality