Portronics are happy to launch“PureSound Plus”- a rechargeable Bluetooth speaker with extraordinary clarity of sound and sleek stylish looks. it has 3 x 2W Speakerswith great amplifiersoffera powerful and clear sound output at all frequencies and tones – bass, mid-range and treble. Humans can hear sound frequencies from about 20Hz to 20kHz. The basic frequency range of the bass is 40Hz-400Hz and can go up to 4000Hz for bass harmonics. A mid-range speaker is a loudspeaker driver that reproduces sound in the frequency range from 250 to 2000 Hz.Treble refers to tones whose frequency from 2.048 kHz-16 kHz- range is at the higher end of human hearing. The powerful industry-leading size of 2200mAh lithium Ion battery can play music for more than 5-6hours on a single recharge. The battery can be fully recharged in less than 2 hours. If you want to stream your favourite music from your smartphone wirelessly, then PureSound Plus gives you the option to use Bluetooth feature so you get stereo sound effect in few seconds. You can also use a 3.5mm AUX port and aux cable to play music from any AUX device like PC, Laptop, Smartphone, iPod, mp3 player, etc. Finally if your awesome music is in a pen drive, you can use it via OTG cable and let the music play in whichever way.