WITH LED CHARGING INDICATOR SHORT CIRCUIT PROTECTION NEVER HEATS OR OVERCHARGES BATTERIES DIFFERENT MODELS AVAILABLE INPUT VOLTAGE: DC 12V- 24V STATIC CURRENT: 5mA SURGING FREQUENCY: 100Hz ONPUT CURRENT: 300mA- 500mA
MICORPHONE: SENSITIVITY: -60 2dB OPEARATION VOLTAGE: 1.0- 10 V EARPHONE: FREQUENCY RANGE: 100 -20KHz SENSITIVITY: 90 3dB IMPENDANCE: 32 15% MAXIMUM POWER INPUT: 10mW BLACK OR SILVER COLOR A