1.Model: Zealot B570 2.Color: Black， White， black-brown， black-gray，white-Pink， white-Blue 3.LED indicators: to indicate power level and other working status 4.For more than 10 meters' bluetooth distance.Clear， stereo， shock deep bass voice， without noise. 5.Wired and Wireless Headset， Built in MIC. Volume up/down function， NEXT/ Back Songs Lithium polymer rechargeable battery， 200 hours' standby time， 10 hours' Music time. 6.Ear hook headser.No damage to hair， Ccomfortable and Security， t won't fall off when exercises as running. 7.Universal use， can be uesed for Computers， PC， Ttablet PC， smartphones， etc. 8.Advanced technology ， concise and fashionable shape， Easy and convenient for operation， sound quality is perfect. Specifications: 1.Support TF Card(2GB; 4GB; 8GB; 16GB) 2.Support system: Windows98， win2000， win XP， win Vista，win 7 3.the usb interface:high speed usb2.0 4.support music file format:MP3，WMA，WAV 5.Battery:rechargeable lithium-ion polymer battery 6.Charging power supply:computer USB port DC5V; DC 5V(500 MA)travel charger; DC 5V(500MA)car charger 8.Frequency response:20 Hz-20 KHz 9.SNR:>90db 10.Continuous working time:8-10hours 11.Charging time:2.5hours Package Includes: 1 x Zealot B570 bluetooth Headset headphones 1 x USB Charging Cable