[Battery]: use AAA No. 7 battery

[Color]: 4 colors

[Weight]]: about 0.05KG

[Size]: 58*65 * 19MM

[Voice]: DD sound

[Function]]:
 1. Countdown function: the maximum countdown can be 9 9 minutes 59 seconds, and the countdown automatically returns to the set countdown time;
  2. Positive timing function: positive timing time 9 9 minutes 59 seconds, loop positive timing;
  3. After the countdown is completed, there will be 30 seconds or 60 seconds of sound ringing prompt, the sound is loud, and there is no noise function in the positive timing;