Volume Adjustment and control technology, sound level information sign

Related tags:

• stamp
• volume
• control panel
• pictogram
• sticker
• audio
• amplifier
• level
• badge
• sound
• label sticker
• label
• tag
• symbol
• panel
• label tag
• control
• record
• interface
• set
• informative
• sign
• balancing
• information technology
• mark
• 19+