ADVANCED HUMIDITY CONTROL: This mini guitar humidifier features a built-in humidistat and thermometer, helping to protect your guitar from panel cracks by maintaining consistent humidity levels. LONG BATTERY LIFE: Equipped with a low-power screen and a single button cell battery, this humidifier offers a standby time of up to 8 months for reliable operation. ABSORBENT MATERIAL: Internal absorbent particles efficiently retain moisture to help maintain optimal humidity levels for your guitar. CLEAR DISPLAY: The ultra-clear widescreen display shows temperature and humidity levels for easy monitoring of your guitar's environment. COMPACT DESIGN: Compact size allows for easy placement inside guitar cases or attachment to guitars. Suitable for use with all types of guitars to help maintain proper humidity levels. Item Type: Guitar Humidifier Material: ABS, Silicone Battery: 1 x CR1130 Button Battery (40mAh, included) Temperature Range: -20 to 70C (-4 to 158F) Humidity Range: 10% to 99% RH Package Includes: 1 x Guitar Humidifier 1 x 10ml Watering Can 2 x Magnetic Strips 2 x Adhesive Pads