1.Good desigh with probe and whitening head
2.light intensity:1300-2000mv/cm2
3.4 modes:whitening. fast, soft, blink
4.Working time:5s/10s/15s/20s/25s/30s/35s/40s
5. 5s/sound
6.LCD shows: Modes, time, battery
7.Big power rechargeable Li battery
8.Good quality LED blue cold light source
Guarantee:two year