*Frequency:2.4 GHz
*Maximum synchronous speed:1/8000 sec
*Available flash mode:TTL,,Manual Flash
*Distance:100m+
*Camera's sync modes: rear-curtain sync,high-speed sync,front curtain sync
*Controllable slave groups:4
*Channel:4 channels
*Output:support PC and hot shoe trigger
*Compatible flash:Flash,studio lights,outdoor flash light
*Input voltage:2.4V-3.2V
*Focus Light:Tx Support Focus Light
*Size:13*8*7cm
*Weight:150g
*Power source: 2*AA batteries