1. [DURABLE ALUMINUM ALLOY] Crafted from high-quality aluminum alloy, ensuring long-lasting durability and reliability for extended use.
2. [RECHARGEABLE BATTERY] Equipped with a 300mAh li-ion battery that offers up to 10 hours of continuous use on a single charge.
3. [WIDE COMPATIBILITY] Suitable for various string instruments like guitars, violins, and mandolins, with a 6.35mm sound cable for easy connection.
4. [HIGH IMPEDANCE CIRCUIT] Features a JFET high impedance charge type amplifier circuit, providing clear and powerful sound without cable length interference.
5. [PORTABLE DESIGN] Compact and lightweight design, making it easy to carry and perfect for musicians who are constantly on the move.

Specification:
Item Type: Piezo Pickup Preamplifier
Material: Aluminum Alloy
Battery: Li ion Battery (Built in) Capacity: 300mAh
Battery Life: 10 Hours
Charging Interface: TYPE C 5V
Input/Output: 6.35mm 1/4TS
Output Impedance: 600Ω

How to Use:
Simply take out the product and start using it.

packing list:
1 x Piezo Pickup Preamp
1 x 6.35mm Sound Cable
1 x USB Cable