Experience superior sound with our Active Pickup, designed for low noise, delicate sound, and a uniform timbre. Enjoy stable sound transmission and enhance your acoustic guitar performance. Features: High Performance, Strong Gain: Leveraging an active system, it's plug-and-play with independent volume and tone control. Benefit from enhanced noise reduction, increased sensitivity, and seamless sound delivery. High Fidelity Original Sound: The active pickup restores authentic sound quality ensuring consistent string pick-up, allowing you to immerse yourself in beautiful music without distortion. Specifically tailored for acoustic guitars, installation is easy with its lightweight, energy-efficient design. Supplied with a nylon battery bag, making battery replacement convenient. Power it with an external 9V alkaline battery (sold separately). Specifications: Model: PJG-02 Active Power Jack System Pickup Input Impedance: 20M Ohms Output Impedance: 1K Ohms Current Drain: 770uA Tone Control Range: ±0dB -6 at 10KHz Cable Length: Approx. 330mm / 13inch Endpin Size: 15mm diameter, 92mm length Pickup Part Size: 100mm length Plug Diameter: φ2.5mm Power Supply: Compatible with 9V alkaline battery Item Weight: 50g / 1.8oz Package Size: 10.5 * 6.5 * 2cm / 4.1 * 2.6 * 0.8inch Package Weight: 66g / 2.3oz Packing List: 1 x Guitar Pickup 1 x Pickup Piezo Rod 3 x Double-Sided Tape 1 x Nylon Battery Bag Note: Battery is not included in the package.