Manufacturer Number: 801400 Brand: Other Power Source: Manual Model Number: er801400 Type: Multi Usage Messaging Technique: Electric Pulse Are batteries needed to power the product or is this product a battery: 0 Is this a Dangerous Good or a Hazardous Material, Substance or Waste that is regulated for transportation, storage, and/or disposal?: 0 External Product ID Type: EAN-13 It is not only compact in terms of design, it scores high on the aspect of utility too. This is what makes it worth the buy.