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Plantronics Backbeat 105 Wireless Earphone with Mic (Black)


Portronics Harmonics 208 POR-923 In Ear Bluetooth Earphones (Black)

Portronics Harmonics 206 POR-831 In-Ear Bluetooth Earphones (Black)

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This device has an inbuilt rechargeable battery with a capacity of 70mAh which requires charging time of 1-2 hours but provides with the standby time of 60 hours. However, it provides a talk time of 3.5 hours and music playback time of 4 hours. It means the usage time provided by the device is just double the charging time. With the sensitivity of 92dB which may rise and fall by 3dB by increasing and decreasing the volume, it has the frequency range of 2.402 GHz – 2.480 GHz and frequency response of 20Hz – 20KHz. It comes with a driver which is of just 10 mm, hence making it lightweight and easy to use. The driver has three buttons on it; Multi-function button, Volume Up & Volume Down button. Multi-function button which allows you to power on or off the device also allows you to pick or reject calls and is supported with backlight. You can also redial the last dialled number by clicking it twice. Backlight in the multi-function button shows the battery level through red and blue lights and also depicts the pairing process by blinking.


It has a multi-function button which lets you power it on or off and also allows you to pick or reject calls and redial numbers. It also has a backlight which shows its battery level and pairing.


comes with the magnetic latch on the back of the ear-bud


The device does not require any wire to connect to the phone or any other media player as it gets connected through Bluetooth.


It gets power from a 70mAH battery which requires charging time of 1-2 hours and provides the talk time of 3.5 hours and music playback of 4 hours. Moreover, it provides a standby time of 60 hours.


It comes with a soft magnetic clip at the backside.

Country of Manufacture India
Brand Portronics
Model Name POR-831
Headphone Style In-Ear
In the Box/ Sales Package 1 Earphone, USB cable, Ear Adapter Sets, User Manual
Connectivity Bluetooth
Headphone Design Behind the Neck
Microphone Yes
Driver Unit Not disclosed by the Manufacturer
Frequency Response 20-20000 HZ
Impedance Not disclosed by the Manufacturer
Magnet Not disclosed by the Manufacturer
Sensitivity 92 dB
Active Noise Cancellation No
Bluetooth Version v4.2
Wireless Range Up to 10 meters (33 feet)
Headphone Jack N/A
Cable Type N/A
Cable Length N/A
Battery Life Up to 4 hours
Playback Time Up to 4 hours
Standby Time Up to 60 hours
Battery Type Li-polymer battery
Battery Charging Time 1.5 hours Approx
Warranty Info 12 months
Covered in Warranty Warranty covers only Manufacturing defects
Not Covered in Warranty Liquid and Physical Damage
Replacement / Return period 365 days
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