Feature:1. [Professional Piezo Pickup] This piezo pickup is designed as a contact microphone, delivering professional level sound reproduction by eliminating external interference and minimizing sound reflections from nearby objects.2. [Adjustable Volume] The adjustable volume feature prevents unwanted noise and feedback, allowing your instrument to produce exceptional sound quality while maintaining authenticity.3. [Easy to Install] The self adhesive design of this pickup allows for easy installation on any part of the instrument without causing any damage to the surface.4. [Standard Plug] The pickup cable features a 2.5mm male mini plug for connecting to the pickup and a 6.35mm male plug for connecting to speakers or amplifiers.5. [Mini Piezo Pickup] This mini sized piezo pickup is suitable for acoustic guitars, ukuleles, violins, and more, providing excellent sound reproduction without the need for batteries.Specification:Item Type: Piezo PickupMaterial: ABSApplication: Acoustic Classical Folk Guitar, Ukulele, Violin, etc..Package List:1 x Piezo Pickup1 x Connection Cable4 x Adhesive Sticker