Features:
Brand New and High Quality
Fashionable Flat USB Cable
USB 2.0 Data Sync and Power Charger Cable
USB cable also has charging capability
Length:about970mm
The USB Cable offers quick transfer
of your music and data

Specifications:
Color:Red

 

Length:about970mm
Net weight:23g
Package weight:33g

Packing Content:
1 x  USB cable

 

 

 

 

at (for Skype， for MSN， etc.)
Plug in standard 3.5mm audio jacks for speaker and microphone
Built-in Microphone can be swiveled and bend to fit your need， and in-line adjustable volume control
Low power consumption， plug and play， no PC driver required 
Adjustable head frame

Specifications: 
Color: Black
Sensitivity: 105 dB SPL at 1kHz
Headphone Impedance: 32 Ohm
Frequency Response: 8 - 20，000 Hz

Package Include: 
1 x Headphone Headset Microphone Mic

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Features:
LM358 chip onboard
100 gain of the circuit design
10K onboard adjustable resistance， you can adjust the magnification
Onboard power indicator
The chip has led major pin can be directly input and output signals

Specifications:
The working voltage: 5 ~ 12V
Size:32*12 mm
Net Weight: 5 g
Color: blue

Package Included:
1* LM358 100 Gain Signal amplification module

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Features:
High Capacity CR2016 Button Cell Battery.
Steady & reliable electric current is ensured.
Commonly used in: Clocks， Watches， Calculators， Computers， Cameras， Digital Cameras，
PDAs， Remote Controls， Camcorders，
Electronic Games， Elect