Black Logitech Portable Speaker for Apple iPad / iPad 2 and Tablets I use the speaker usually on a Coby Kyros MID 1126 Watch video and listen in the kitchen cooking the Iphone to music. In comparison to the internal Coby LS there is a gain. Can of course with an active LS not keep up, but so look for even a video or listen to music anywhere absolutely sufficient. Clear sound (bass come through better) and sufficient volume. The battery lasts a long time, but have the time not yet measured - but are at least 4 - 5 hours What I well find that the battery via the USB port can be loaded on the PC, and also with the original power supply from the iPhone.. Small disadvantage - but no volume control is not so bad. The built-in clamp is very good, because the brackets are padded with rubber and so not rumrutschen when moving the unit. Cute dowry is the protection bag for traveling. All in all, a strong buy recommendation, when the demands on the sound are not all too high.