?Package Include?:1pc 9V 1A Adaptor+1pc Breadboard Power Supply Module+1pc Battery Clip+1pc 830 Breadboards+65 pcs Jumper Wires. ?Jumper Wires Kit? :65 pcs flexible male to male jumper wires 49pcs 120mm/4.72", 8pcs 160mm/6.30", 4pcs 200mm/7.87", 4pcs 240mm/9.45",convenient to connect module. ?Breadboard?: 830 tie-point MB-102 solderless breadboard, size 165x55x8.5mm. ?Breadboard Power Supply Module?:Output two road independent control, can switch over to 0 V, 3.3 V, 5 V;Input Voltage: 7-12V (DC) or 9V Battery. ;Output Voltage: ~3.3V/~5V;Output Current: 700mA(Max);With 9V battery snap power cable T-type 5.5x2.1mm connector;Fit for: MB-102 Breadboard; Arduino Board Solderless Breadboard etc. ?9V 1A Power Supply Adaptor?:Input 100V-240V 50/60Hz; Output 9V DC, 1A (1000mA) max.; Works with device that draws less than 1A, such as 0.5A 0.7A 0.9A 1A , with 5.5mm x 2.5mm Plug. DC output port's outer diameter is 5.5mm, inner diameter is 2.5mm Compatible with 2.1mm. can supplying power for project stability.