Features 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. Specifications: Item Type: Piezo Pickup Material: ABS Application: Acoustic Classical Folk Guitar, Ukulele, Violin, etc. Package List 1 x Piezo Pickup 1 x Connection Cable 4 x Adhesive Sticker