Brand: PTron Item : Bluetooth Headphone Color: Blue Bluetooth: v4.2+EDR (chipset JIELI6905) Colour : Blue Frequency Response : 20Hz-20KHz Speaker Size: 40mm 0.5W Output Power : 40mW Transmission Distance : Up to 10M from the paired device SNR : 85db Impendance : 32Ω Battery Capacity : 400mAh Charging Time : 1-2 Hours Playing Time : 5-6 Hours depending on the volume level Standby Time : 150 Hours Functions : Support Music/ Call function/ Wireless bluetooth transmission/ one-key call back/FM/MP3/Computer Headset Support : Cellphone/tablet PC/ Desktop/etc. The headset uses a streamlined design, extremely comfortable to wear solid neck brace which can be adapted to different conditions.The over-the-head styling is stable, lightweight and comfortable.Noise cancellation, bring you clear sound effect.Be designed with two High-grade speaker, powerful bass system, bring you superior sound effect.Low power consumption, bring you long talking time and music playing time.Works with all compatible Bluetooth-enabled smart phones or other devices.With folding and comfortable headset, you can keep enjoying for a long time. Easily charged by the included USB cable via computer, etc.With this product, you greatly enjoy the wonderful wireless music, listen to FM radio, and it also can be worked as a MP3 Player because it supports Memory card.