Features:
<br />4 in 1 multifunctional bluetooth headphone which have SD/TF card mp3 player, FM radio, wireless&wired mode function.
<br />40MM large-aperture drives unit and late-model Composite vibrating diaphragm, work in an extended Frequency Range of 20 Hz-20K Hz, will bring you a deep bass, clear, and a stereo music and you can hear every beats.
<br />CVC6.0 noise cancelling reduce noise effectively, bluetooth V4.0 for quick pairing, range of 33 ft and equip with a HD built-in microphone. Only for your perfect hearing and talking using experience.
<br />Foldable and lightweight for carrying and wearing, can be folded into a small space and easy to carry for your daily using such as travel. Soft leather and inert-sponge ear pads can fit to your ear and head comfortably.
<br />Remote control for phone call handle, volume control and songs switch. Charge for 1.5-2 hours and work for music playing in 6-8 hours. Wireless&wired mode easy to change, don t worry when battery dead, just switch to the wired mode with the 3.5mm audio cable.
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<br />SPECIFICATION: 
<br />Bluetooth Version: V4.0
<br />Drive unit: 40MM
<br />Range: 33 feet (10 meters) 
<br />Talking Time: Around 6-8 hours
<br />Playback Time: Around 6-8 hours
<br />Charging Time: 2 hours
<br />Charging Voltage: 5V
<br />Battery Capacity: 300mAh
<br />Dual mode: Wireless & Wired
<br />Resistance:32 
<br />Wire Connectors:3.5mm
<br />Line Length:about 5 feet /1.5m
<br />Sensitivity:108 3dB
<br />Mic Sensitivity: -42 3dB
<br />Frequency Range 20-20000HZ
<br />Mic Frequency Range 100-10KHZ
<br />Size: 6.7*6.3*2.9 inch
<br />Ear Pad Size: 2.7*1.3*0.6 inch
<br />weigh: 5.4oz/155g 
<br />Function: For Mobile Phone,Sport and Study
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<br />PACKING LIST:
<br />1x BT-08 Bluetooth Headset
<br />1x 3.5mm Audio Cable
<br />1x USB Charging Cable
<br />1x Packing Box
<br />1x User Manual
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<br />Note: The accessories is under the headset, please check the box before throwing it, thanks.