AT DVIS - LS- Loud Speaker
The LS-688 is a low power consumption speaker, having volume control and power switch. It may be positioned anywhere in the vehicle as it can connect to any of the GAIO ports in the intercom system.
DC Power Input: 18~32V
  Audio Input Power: 10~100mA (MAX)
  Speaker Output Impedance: 8 Ohms
  Speaker Output Power: 10 Watts
  Size: 122mm x 122mm x 78mm (LxWxH)
  Weight: 1.04kg
