Features: [5-Band EQ]--Volume control, presence control, bass control, middle 1 control, middle 2 control, treble control, tuner power on\/off button. [Great Tone And Pickup Range]--The complete kit offers great tone and pickup range. [Amplify Electric Box Guitar Sound]--The 5 band powered preamp pickup unit includes all you need to add a pickup to your electric guitar and amplify their sound. [Easy To Read]-- With LCD display, more easy to read. Directly seeing the figures, more convenient. [Convenient To Install]--This pickup is made to be installed in the body of any standard acoustic guitar. Convenient to use. Specifications: Color: Blue Battery: DC9V 6F22 battery(NOT included) Frequency response: 20Hz-20KHz Control range: Bass: 12dB at 60Hz, Middle: 12dB at 500Hz, Middle 2: 12dB at 1.2KHz, Treble: 12dB at 3KHz, Presence: 12dB at 8KHz Output jack: 6.5mm \u0026 XLR output jacks Package size: 20 * 13 * 5cm \/ 7.87 * 5.12 * 1.97in Package weight: 200g \/ 7.05oz Note: The battery is not included. Package list: 1 * Pickup 1 * Pickup stick 1 * Nylon cable 8 * Screw 1 * Cable holder 1 * Battery box