Your baby is precious, keeping this in mind, Sleevely is 100% safe for both parents and babies, the design and development process ensure they comply with all rules and regulations, including the use of safe components and hazard-free. The technology integrated in this device features smart sensors with flexible arms. These arms, located opposite each other, are used to measure the exact amount of formula or breast milk at the bottle anytime. Together with temperature sensors, all these readings are transferred to your mobile device via Bluetooth.