Soundsoul(TM) Stereo Bluetooth Speaker - Black- 20hrs Playtime, 15mtr Bt Range and Enhanced Bass (2014, black) Portable Stereo Bluetooth Speaker with 2 x 3watts rms digital amplifier Huge 1800mah rechargeable Lithium polymer battery provides up to 20hrs playtime from a single charge Handsfree calls with noise reduction technology for crystal clear conversations Touch sensitive controls and with intelligent voice guidance system, input via Bluetooth (15mtr), MicroSD card or 3.5mm AUX 2 x long throw Nbfed magnetically shielded speakers with a Harmonic bass matrix system for enhanced bass