Philips PT7900B is great company for traveling, park, home and office. It is water-, dust- and shockproof portable speaker and despite of it's small size it has great quality of sound. It plays music up to 10 hours without charging and has quick charge option. Bluetooth connection up to 30 metres. Built-in microphone for hands-free phone calls. Speaker remembers devices it has been connected to earlier. USB cable doubles as a hand strap. Available in 3 different colours.