Product Description

• COLLAPSIBLE FEATURE: Take your headphones wherever you go. Just fold them up, twist up the cord, and be on your merry way.
• Hands-free Talking And Volume Control: The built-in mic, remote, and volume control let you pick up calls and skip between tracks without missing a beat.
• ADJUSTABLE HINGE: The adjustable headband gives your headphones some impressive flexibility so they can adapt to the shape of your head for a perfect fit.
• NOISE ISOLATION: full-sized, on-ear construction isolates from outside noise so you can hear the deep bass and crisp mids and highs of your upcoming track.
• WIDELY COMPATIBLE: Will not kink, twist or break under normal use. Use with all your favorite devices like Cellphones, laptops, computers, MP3, MP4, and other audio devices.

Specifications:

• Bluetooth version: 4.1
• Wireless receiver: Bluetooth headset and handsfree mode (HFP 1.5)
• Frequency: 2.4G, ISM 2.402-2.480GHZ frequency band
• RF performance: receiving sensitivity: -80dBm
• Frequency of sound: very high signal-to-noise ratio 80Hz-20KHz
• Charging port: Micro 5 pin USB charging interface
• External audio input: support 3.5mm Line in
• Normal charging time: about 2-3 hours
• Talk time: 5 - 6 hours