Specifications:
-Version: Bluetooth V2.0, compatible for V1.1/V1.2 standard.
-Support functions: Headset profile, Handsfree profile.
-Transmitted power: Class2
-Frequency: 2.4G
-Transmission distance: 10m
-Mic sensitivity: -45dB(0dB=1V/Pa, 1KHz)

Characteristics:
-Product weight: 10g
-Holding time: 4 hours
-Standby time: 80 hours
-Charging time: Less than 2 hours
-Electric current: 80mA
-Charging voltage: 5V
-Working voltage: 3.3-4.2V
-Charger power supply: 110-240V
-Temperature: To save the power and life of battery, please keep
the battery in the temperature between 15°C to 25°C.
-Compatible models: Compatible for each brand bluetooth mobiles as handsfree,
it can also be used for skype chatting with bluetooth adaptor.

Descriptions:
-Battery type: Built-in rechargeable lithium battery
-Wearing style: Ear hook
-Color: Black, White
-Other features: Ingenious design, one-handed operation.
With noise reduction and echo suppression technology, it always
tramsmits excellent sound in any noisy environment. Safty use and low radiation.
-Attached accessories: USB charger,USB cable,instructions,earhook.