Linner Earbuds Hoofdtelefoons In-ear Headsets ( Item#: V2707R )

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Features:
[Advanced Active Noise Control System]
Linner Headphone adopts advanced Acoustic Noise Reducing Technology which brings Dynamic Crystal Clear Sound for music lovers, Reducing ambient noise and delivering the detail of voice, letting you hear music quietly. And, its built-in Enhanced Bass System ensure the powerful music experience. 
[Unique Design and High Performance]
Linner Headphone supports Noise Reducing and Monitor Functions, your can freely switch between Noise Reducing and Monitor Functions via the “A/M” Button: Push the button to “A” end, the headphone enters into Noise Reducing Mode, ambient noise can be reduced. Push the button to “M” end, the headphone enters into Monitor Mode, ambient noise can be enlarged to ear. 
(The Noise Reducing and Monitor Functions need to be powered by its battery. If the battery runs out, you can also use the headphone as a traditional 3.5mm audio headphone.) 
[Music and Call Function]
Linner Headphone supports listening to music and hands-free functions. you can easily use the basic function of talking and listening music anytime and anywhere. Even if the battery of the headphone has no power. 
[Ergonomic Design]
Adopts Sweatproof Rubber Materials, Light and Portable. Its earbud's design is based on the outline of human ear which guarantees 100% Stable and Comfortable to wear when walking, exercising, running, cycling, fishing and other outdoor activities. 
[Charging Method] 
Linner Headphone comes with built-in rechargeable Li-ion battery which support lasts up to 4 hours of working time after fully charged. Easy to charge: connect the headphone to the USB charging adapter via its 3.5mm audio connector, and then insert the USB connector to external USB charging port or your computer please ensure the USB Adapter's output voltage is 5V),full charge time is about 1.5 hours. 

Specifications:
Brand: Linner 
Type: Acoustic Noise Reducing Headphone
System: Dynamic
Noise Reduction: Up to 26dB
Plug Type: 3.5mm Plug
Microphones:
Talking Microphone: ECM * 1
ANC/ Monitor Microphone: MEMC * 2 
ANC Technology: 95% of ambient noise 
Speakers:
Speaker Diameter: 13mm
Dynamic Driver: 32ohm
Frequency Range: 10Hz ~22kHz 
Sensitivity @1kHz: 101 dB SPL/V (Passive),105dBSPL/V(ANCActive)
Battery:
Battery: 20mAh Rechargeable Lithium Battery
Working Time: 4 hours(Battery Life)
Maximum Input Power: 10mW
Charge Time: 1.5 hours
Charge Voltage: 5V 50mA
Color: Red, Deep Blue (Optioanal)
Main Item weight: 18g / 0.62oz
Package size: 15.0 * 10.0 * 3.5 cm / 5.9 * 3.93 * 1.37in
Package weight: 234g / 8.25oz

Package Lists:
1 * Linner Headphone 
1 * USB Charging Adapter 
2 * Pair of Earmuffs
1* Pair of Ear Hooks 
1 * Cloth Pouch 
1 * Chinese / English User Manual