<b>I-STAR Smart Speaker</b><br><br>Tap the speaker to ask Alexa a question,like "What time is it now?","What's the weather today?" or just a casual conversation during boring time,"Hi Alexa,I'm a little bored,give me some advice?" With up to six hours' playing time,I-STAR audio stereo speaker with other speakers in your house for a whole-home sound solution.<br><br>Large Battery Capacity: Works with Echo Dot 2nd generation (for 6 hours), detailed depends on its working status.<br> High quality music enjoyment: 10W Stereo speakers,passive subwoofer,360°omnidirectional audio,I-STAR smart speaker makes your music world more wonderful, anytime, anywhere, fall in love with music! <br><br>Specifications: 10 watt RMS stereo speakers and passive radiator<br>Charge time:5 hours<br>Battery: lithium battery<br>Capacity: 2 x 2200 mAh<br>Battery voltage: 7.4 V<br>Running time: 6 hours music playing (60% volume）