IQDogtras small and compact unit for small dogs. The new IQ has a new fashionable two tone water resistant transmitter that weighs only 2. 7 ounces. The waterproof receiver weighs only 3. 9 ounces. This 400 yard range, low to medium power unit has the new technology of the 2 hour Li Po battery charging mechanism for easy charge and use. The smooth rheostat dial and the non stimulating pager features are Dogtra favorites included on this model.