Featuress- Material: Plastic.- Size: About 18.50X9.10X4.50cm/7.27X3.58X1.77inch.- Temperature measurement range: 0℃~50℃ Error: plus or minus 1℃.- Humidity measurement range: 20%~95% error: plus or minus 5%.- Power supply: DC5V.- The product uses high-performance radio modules, and the audio frequency range is FM76MHZ-108MHZ, which can meet the needs of most countries in the world.- The radio has the functions of automatic search, automatic lock, and automatic storage. - The number of storage stations is unlimited, and the operation is simple and convenient.- The user-friendly design of the radio can be set to automatically turn off time, the setting time is 5-90 minutes, and the radio can be turned off according to the setting.- Large-screen LED display, the brightness can be manually adjusted.Packing list: 1 x Projection Clock1 x Bubble bag1 x Manual1 x 1.5m USB cable1 x 2032 button battery1 x leather box