Pivoting Silk Dome Tweeter
The 1-inch silk dome tweeter generates abundant detail and clarity, Pivoting design means the tweeter can be aimed for a spacious sound stage.
Quick and Easy Installation
Easy to attach or remove for quick installation. No need for expensive professional installation.
Flush Mount Design
Compact flush mount design for simple easy installation on any flat surface.
Speaker Size: 4 lnch
Model: HCS 4-418BT
Max Power Output: 320 Watts
Power Output: 80W
Max Sensitivity: 89 db
Impedance: 8 Ohms
Frequency Response: 60-20 KHZ
Total Speaker Diameter: 6.4 Inch（16.2CM）
Cut-Out Diameter: 5.7 lnch （14.5CM）
Speaker Depth: 2.6 Inch（6.6CM）
4* Ceiling Speaker
4* Speaker Cable
1* Bluetooth Amplifier
1* Power Adapter (Supplied by your country)
You can connect to another speaker through speaker cable.
Yes,that is ok.You can use an amplifier to connect 4 speakers.
We suggest you make a power switch,it will prolong the speaker life time.