Fine workmanship,Sophisticated materials, Overcurrent protection devices, High-frequency part 3pcs 100V1.5uF using non-inductive capacitor in parallel Low-frequency part 220uF capacitors and inductors to achieve clear and full sound. Administrative levels feeling more distinct Crossover Frequency: 3000Hz Filter characteristic: Third Order divide 12DB / OCT Size: 105 x 65 x 30mm(L x W x H) Maximum Power: 220W colour: as shown Material: ABS Package Contents: 2 x Stereo Audio Frequency Divider Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.