More Details: Description: This fashionable, comfortable and durable Bluetooth 4.0 headphone is for both wireless and wired use, which allows you to freely enjoy your favorite tunes and receive\/hang up\/make phone calls on the go, at home or in the office wirelessly. This headset deliver you powerful bass, great sound quality and acoustic experience while listening to music on your for iPod, MP3\/MP4, for ios\/smart phone, PC and any device with 3.5mm jack\/Bluetooth. Specifications: General Specification Brand Name SYLLABLE Model Number G600 Color Black&Red Wearing Type Headset Technical Parameters Battery Polymer Lithium battery Audio Input 3.5mm Output Power 65mW THD+N=1% Driver Unit 40mm Microphone Sensitivity -45+3db Working Voltage Range 3.0V-4.2V Impedance 16 OHM Bluetooth Frequency Range 2.402-2.480GHz Audio Frequency Response 20-20000Hz Bluetooth Version V4.0+EDR dual mode Bluetooth Protocol A2DP\/AVRCP Transmission Range About 10M Noise Cancelling Circuit Active noise cancelling Power Level CLASS II Package Included: 1× Wireless Bluetooth G600 Headphone 1× USB Charging Cable 1× 3.5mm Audio Cable 1× User Manual