what s nice is a few things. it comes out here. this is your stone. it comes with a headset. instead of trying to find a socket you can put it right in here and charge. how many charges can you do? three or four charges. you can talk and talk and talk. it speaks to you. but it in your ear. it tells you when to pair. it does all the thinking for you. exactly. this is another charger. these are for your cell phone devices. what s nice about it is wireless cell phone charging. you take your mobile device, you replace the battery cover with this and set your device on tom of here and it charges it wirelessly and it s also mobile. anything that has no wires gets my interest. and how many charges do you get out of this? again, all day computing, i d say three or four. if you want to talk a lot, recharge. brilliant. i m constantly in airports trying to find a place to plug my cell phone in.