Key features

• •THE ULTIMATE HUMIDITY GUARDIAN FOR YOUR ACOUSTIC GUITAR: This acoustic guitar sound hole cover humidifier is specially designed to maintain the optimal humidity level for your guitar, preventing deformation, cracking, and other related issues.
• •IMPROVES SOUND QUALITY AND ELIMINATES FEEDBACK: This hole cover is not only a humidifier but can also be used as a normal sound hole cover, eliminating unwanted feedback and howling, thus improving the sound quality.
• •EASY TO USE AND OPERATE: The musical instrument accessories are simple to use and operate. Just moisten the supplied sponge and install it to reuse the humidifier, ensuring that your guitar is always protected and performs at its best.
• •MAINTAINS HUMIDITY LEVELS FOR OPTIMAL PERFORMANCE: With a sound hole humidification function, this tool can maintain humidity levels between 45% and 65%, ensuring your guitar's optimal performance.
• •HIGH-QUALITY MATERIALS FOR MAXIMUM PROTECTION: This guitar sound hole cover humidifier is made of soft rubber cover, a cover surface, a water retention sponge, a moisture-proof net, and a bottom cover, all of which work together to protect your guitar from damage.