Crescendo Voice High Noise Cancellation Bluetooth Headset - Accurately Recognizes Voice Commands - no Training Required - allows Users To Find News, Stocks, Travel & More Information With Voice Command At Bing411 Voice Search Engine - superior Noise Cancellation Engine Installed To Eliminate Up To 85 Db Environmental Background Noise Effectively - up To 5 Hours Talk Time & 7 Days Standby Time - operation Range: Up To 33 Ft - voice Recognition & Voice Alerts Available In American English Or French - Bluetooth Specification: V2.0 / v2.1 Compatible - PDC-00001-01
