Wireless MP3 player to play back MP3 files such as music, noises and sounds. With internal loud­speaker, USB port, micro USB port, 3.5mm jack socket to connect stereo headphones and a 3.5mm jack socket to connect an external loudspeaker. Plastic housing, pure white, lxwxh: 165x70x35mm with oblong holes for wall mounting and plastic feet for placing on flat surfaces, weight 230 grams. The scope of supply comprises a USB stick (plugged as delivered in the USB port) containing MP3 files, a 5V plug-in power adapter with micro USB cable and a 3.5mm jack plug with screw terminals to connect an external loudspeaker. Up to 120 sensors, e.g. wireless pushbuttons, wireless window/door contacts and wireless motion detection sensors, can be taught in. Up to 50 different tracks can be played back. Eltako has stored examples of noises and sounds on the USB stick with the kind approval of the operator of the internet platform www.salamisound.de . You can supplement or replace them. We also recommend the website www.audiyou.de as an additional source to download sounds. Possible applications: doorbell with a variety of different tracks for various sensors. Acoustic signalling device for open/close doors, cabinets or drawers. Acoustic signalling device for motion detection. Repetitive acoustic signal for open doors (e.g. refrigerator). Acoustic confirmation signal for any incident in the Eltako wireless building system.