Retractable Bluetooth 4.1 Headphones Sport Neckband Headsets HD Stereo Earphones Black

Description:
The Bluetooth V4.1 headphones, equipped with the advanced Apt-x Technology + CVC6.0 Noise cancellation, offer you stable and crystal high-fidelity natural stereo sound. And the highlight design of Snakeskin Matte Texture makes the biggest difference both in visual and touch experience. Besides, the retractable wire design keeps away from wire mess no matter when and where. 

Features:
Snakeskin Matte Texture: Trendy cool snakeskin texture catches eyes among group, youthful enjoyment just from the headphones. Matte craft prevents sweat-stain, fingerprint from headphone's surface, keeping the earphones clear all the time.
HD Hi-Fi Sound: Bluetooth 4.1 with APT-X audio decode technology + CVC6.0 noise cancellation enables stable and high-fidelity natural stereo sound with super audio performance. 32ohm High output drivers with 10mm speaker delivers powerful HD quality premium sound with deep bass and crystal clear treble.
Retractable Wire: One button controls retractable wire (pressing retract button to pull wire for better wire protection than directly pulling wire way). Wire length could be adjusted as you need, keeping away from wire mess no matter when and where. Vibration and voice prompt for incoming calls helps not to miss any calls.
Longest Battery Life: 120mAh lithium polymer battery allows seamless enjoyment of up to 10 hours of music time, or 15 hours of talk time, or 500 hours of stand-by time with a quick charge of 2 hours. For iOS devices, live battery capacity is shown on devices, so that you can actively master battery status any time.
Flexible & Lightweight:  Made of flexible and durable silicone material, the neckband weighs only 40g / 1.4 oz, 60% lighter than any other neckband of headsets. you'll even forget you are wearing them!

Specifications:
Charging voltage: Micro USB 5V
Working current: 10-20mA
Bluetooth version: V4.1
Bluetooth work range: 10M / 32.8ft (Open area)
Output power: 2 x 18mW
Frequency range: 2.401-2.480GHz
Distortion factor: ≤1%
Frequency response: 20Hz-20KHz
Working Hours: Music Status: up to 10 H / Talking State: up to 15H
SNR: 95
Charging time: Approx. 2H
Bluetooth Name: HX 831
Channel Speaker: 16Ω x 2
Battery: 3.7V / 120MAH (polymer rechargeable battery)
ANC Frequency: 100-1000HZ
ANC level: 15-20dB
Standby time: 500H
Working environment: -10 ~ 60 ℃
Color: Black, White, Rose Gold (Optional)
Package weight: 150g

How to connect two Bluetooth device simultaneously:
1. Connect with the first Bluetooth device, then disconnect it.
2. Then connect with the second Bluetooth device.
3. At last, reconnect with the first one, and you will have them connected simultaneously.

How to switch language (English, Japanese, Korean, Chinese)
1. Turn this headphones on
2. Keep pressing pause button for 2 seconds before Bluetooth pairing. Voice prompt will tell you which language you are in.

Package List:
1 x Bluetooth Headphone
1 x USB Charging Cable
2 x Pairs of Earbuds (Different Size)
1 x User Manual