color:black Material: Plastic Powered by: 2 x AAA batteries (Not included) Attachment Method:Clips or Velcro fixed Capacity:100ML Size：11*9.8cm weight:250g Features: Maximum 4 feedings per day. Mini shape, space-saving for your aquarium. Easy operation and installation, manual and automatic. The Lo logo ""displayed on the LCD shows the power low. If the battery has not been replaced after 3 days, all executions will be automatically turned off.To avoid the food bin stopping at an unreasonable position. Adjust by the slider, you can increase or the amount of food delivered per rotation. Setting method: Standard time setting method: a) Press the SET button, the hour hand flashes, press the ADJUST button to adjust the clock. b) Press the MODE button, the minute hand flashes, press the ADJUST button to adjust the minute. c) Press the SET button to store the standard time. Feeding time setting a) Press the MODE button, the LED shows 00:00 b) Press the SET button to display the hour hand and press the ADJUST button to adjust the clock. c) Press the MODE button to display the minute hand and press the ADJUST button to adjust the minute. d) Press the MODE button, the Arabic numeral “1”, flashing, press once ADJUST to indicate feeding once, and the LED to display “↓”. According to the secondary ADJUST, the feeding is repeated twice, and the LED displays “↓↓”, and the two execution time intervals are 1 minute. e) Press the SET button to save the settings. f) Repeat step a) e) Steps can be set to set the next feeding time and feeding times. If you do not need to set the next feeding time, you can press the MODE button 4 times to return to the standard time display state. The feeder will work according to the set time requirements, and up to 4 feeding times per day can be set. Change feed settings a) Delete any set feeding order, press MODE to select the feeding order to be deleted, press SET to select, then press MODE twice to make the serial number flash, press ADJUST to make it disappear on the screen, and finally press SET to confirm . b) To change any of the set feeding times, press MODE to enter the feeding order that needs to be modified, and repeat the feeding time setting