Specifications: Model:AF-2009D Color: Black Housing: Plastics Type of battery: 2*AA batteries (Included) Attachment Method: retaining clips or Velcro fixed Unit dimensions (approx.): 4.3*4*2.5inch (11*10*7cm) LCD screen dimensions (approx.): 1.1*0.5inch (2.6*1.3cm) Feed box diameter: 6x3.5cm(Lx H) Net weight: 184g Package dimensions: 120*77*110mm(Lx Hx W) Package weight: 246g Features: Mini shape, space-saving for your aquarium.åÊåÊåÊåÊ Patented design for moisture proofing, mixing, and crumbling food. No jam, no clog and no fuss.åÊåÊ Can fill the container with food without disassembling the automatic feeder.åÊ Programmable food volumes and feeding times. By adjusting the slider, you may increase or decrease the amount of foodåÊ dispensed per rotation. Works with dry loose flakes or pellets.åÊåÊåÊ Maximum 4 feedings per day. The logo "Lo" displayed on the LCD indicates the power is low. Has a built in digital clock for accuracy. Can work both automatically and manually. A clear easy-to-read LCD screen which shows all info at a glance.åÊåÊ The feeder can be mounted in two ways (free-standing or rim-mounted) according to the shape of your aquarium. Safe and convenient. Simple operation and installation,åÊmanual and automatic Package included: 1 x Digital Automatic Aquarium Fish Food Feeder 2 x AAA 1.5V Battery 1 x Velcro 1 x User manual If you want to find other related products, please click on the link.http://www.banggood.com/Mini-USB-LCD-Desktop-Aquarium-Fish-Tank-LED-Light-Timer-Clock-Calendar-p-91875.html