Harmonics 206 device has an in-built 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 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 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 light weight and easy to use. The driver has three buttons on it; Multi-function button, Volume Up & Volume Down button. INLINE CONTROLS:- 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. MAGNETIC LATCH:- It is comes with magnetic latch on the back of the ear-bud. WIRELESS:- The device does not require any wire to connect to the phone or any other media player as it gets connected through Bluetooth.