Specifications: Bluetooth version: Bluetooth 5.0. Applicable models: Universal. Appearance material: leather PVC. Shell material: wooden density board. Voltage: 12V. Maximum power: 600W. Impedance: 4Ω. Speaker unit size: 210mm/8 inch. Sensitivity: > 90DB. Frequency response range: 20HZ-25KHZ. Distortion: <0.01%. Size: 350x255x73mm/13.8x10x2.9inch. Weight:5kg. Features: -- 8 inch woofer speaker. -- 73mm Slim fuselage, installed under the seat, the effect is better. -- Built-in Bluetooth 5.0 for easy wireless connection to play music. -- Has a professional single channel power amplifier template, including bass filter, bass enhancement, high-frequency power controller, remote control by wire and other high-end functions. -- Wooden MDF body, to minimize vibration caused by noise, to ensure that in a long time, high load performance in the environment stable and reliable. -- Design of high temperature resistant coil, ensure the heat dissipation and avoid the sound box burning. Note: 1. Please allow 0.5-1cm differences due to manual measurement. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Package included: 1 x Active subwoofer 1 x Positive power cord (red) 1 x Negative iron cable (black) 1 x Audio cable (blue) 1 x Control cable (yellow) 1 x user manual