Wired Remote Shutter Release Control NIKON MC-DC2 for Nikon D3300- USA SELLER | eBay
How to fix Nikon D3000 shutter release button error - iFixit Repair Guide
Nikon D3300 Controls
Polaroid Shutter Release Timer Remote Control for Nikon D90, D3100, D3200, D3300, D5000, D5100, D5200, D5300, D7000, D7100, D750, DF, D600, D610, P7700, P7800 Digital SLR Cameras - Walmart.com
YouPro YP 870II MC DC2 Wireless Shutter Timer Release Remote control for Nikon D3300/D3200/D3100/D750/D610/D600/D90/DF/P7700|remote control for nikon|wireless shuttershutter timer - AliExpress
Price history & Review on Viltrox JY-120-N3 Camera Wireless Shutter Release Remote Control for Nikon D3300 D3200 D5600 D5300 D5500 D7100 D7200 D750 DSLR | AliExpress Seller - VILTROX PRO Store
How to Set the Nikon D3300's Release Mode - dummies