Brand: Technical Pro. MPN: WASP680X. This is a great portable wireless speaker for those on the go. It is easy to transport and has wheels and a telescopic handle, so you can pull it along like airline carry-on baggage. This versatile unit makes a great music system for home use and its accompanying wireless microphone makes it a great PA system for educational and business situations. It contains some great bonuses that will surprise you.If you travel to make sales presentations, or if you are a college lecturer, or if you find yourself in a situation where you have to make announcements, this speaker is for you. A lot of places don't have power points.If you are leading the local planning committee to an empty lot to illustrate the construction project you want to build, how do you address them? With a bullhorn? No, with the Technical Pro WASP680 speaker. This unit has a rechargeable battery and it can function effortlessly off-grid for about 5 hours. That means you can deliver your sales pitch anywhere.You don't have to limit your use of this speaker just to making announcements. You can play music on it, too. You don't need an amplifier, or a CD player, because the unit has an integrated amp, and it accepts digital storage media, so the bulky CD player is a thing of the past - replaced with a small memory stick, or tiny SD card.Those small storage devices plug right into the speaker and you get a panel of controls to select the right track and alter the volume. There is even a remote control unit. This, combined with the wireless speaker, means that you can walk around the site during your presentation, drawing attention to important features of the surroundings.This speaker is great for wilderness situations. Imagine tutoring a rock climbing class with it. You could even play music to calm the nerves of the students as they climb - try the built-in radio tuner if you are tired of your music library.You haven't got to the end of this speaker's list of features yet. It also has Bluetooth capabilities, so you can store your entire presentation on your cell phone memory and connect to the speaker wirelessly from up to 30 feet away. You can probably see now how many different situations would benefit from this great speaker.