1. Maximum number of speakers: we recommend you to use no more than 4 sets of speakers. 2. Maximum support power handling: rated power of each channel with amplifier up to 300W. 3. Speaker wires: 2 or 4 wires, 16 AWG to 14 AWG. 4. Easy to install: the input and output connectors can be wired, and the partition can be set. 5. Simple and compact design. Input: 1 set of input (banana plug) Output: 4 sets of output (banana plug) Power: maximum support 300W (The product requires no external power supply and is easy to install) Colour:Black Material:Aluminum Alloy Size: 245x65x 51mm(length x width x height) Package Contents: 1 x Audio Amplifier Splitter Only the above package content, other products are not included. Note: Light reflection 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.