10pcs/lot CD4011BE DIP-14 CD4011 TC4011BP CMOS NAND GATES IC
5Pcs CD4011UBE 4011 IC NAND Gate, CD4011, 2 Input, 6.8 mA, 3 V to 18 V,
MiOYOOW 2 Pack DIY Electronic 16 Music Sound Box DIY Kit Module Soldering Practice Learning Kits for Arduino, Back to School Learning Electronics - Amazon.com