The Sidekick 3 Ounce Squirt Device is a compact, reliable temperature control solution designed for portability and discretion. Holding up to 3 fluid ounces, it features a clear digital display so you can quickly set your desired temperature. This model heats from 75 degrees to 96 degrees in about 12 minutes. It maintains operating temperature for over 2 hours when worn in 75 degree environment. Device will operate in a 3 degree temperature range about 2 degrees above target temperature and 1 degree below target temperature in regular heating and cooling cycles. For example: Target temperature of 96.0 will make the fluid temperature stay between 95.0 and 98.0 during normal operation. Each 3-ounce device includes two rechargeable lithium batteries, a battery charger, a carrying belt for hands-free wear, a funnel for easy filling, and simple operating instructions. Just insert the batteries, fill, set your temperature, and you are ready in minutes.