Usage Tips:1、ADVANCED HUMIDITY CONTROL: This mini guitar humidifier features a built in humidistat and thermometer, protecting your guitar from panel cracks by ensuring accurate and consistent humidity levels. 2、LONG BATTERY LIFE: Equipped with a low power screen and a single button cell battery, this humidifier has a standby time of up to 8 months, providing reliable humidity maintenance. 3、ABSORBENT PARTICLES: Built in excellent absorbent particles lock in moisture efficiently, ensuring optimal humidity levels for your guitar. 4、CLEAR DISPLAY SCREEN: With an ultra clear widescreen display, this humidifier provides easy to read temperature and humidity level information, keeping you informed about your guitar's environment. 5、COMPACT DESIGN: This humidifier is compact in size, making it easy to attach to your guitar or place inside guitar cases or boxes. Its versatility allows it to be used with all types of guitars, ensuring consistent humidity control and protection. Item Type: Guitar Humidifier Material: ABS, Silicone Battery: 1 x CR1130 Button Battery (40mAh, included) Temperature Range: -20 to 70℃ / -4 to 158℉ Humidity Range: 10% to 99%RH 1 x Guitar Humidifier 1 x 10ml Watering Can 2 x Magnetic Strips 2 x Adhesive Pads