Here are the previous guesses for The Original Jay and Kevin Secret Sound:

Tuesday, September 9th Guess 4:

Tuesday, September 9th Guess 3:

Tuesday, September 9th Guess 2:

Tuesday, September 9th Guess 1:  Bluetooth Speaker Turning On

Monday, September 8th Guess 4: Turning a Rotor

Monday, September 8th Guess 3: Stapler

Monday, September 8th Guess 2: Moving Your Foot

Monday, September 8th Guess 1:  Combination Lock Tumbler

Friday, September 5th Guess 4: Moving a Trash Can

Friday, September 5th Guess 3: Door Closing

Friday, September 5th Guess 2: Banging on a Plastic Bucket

Friday, September 5th Guess 1: Opening An Aluminum Can

Thursday, September 4th Guess 4: Shuffling a Deck of Cards

Thursday, September 4th Guess 3: Putting A Car in Park

Thursday, September 4th Guess 2: Plastic Extendable Straw

Thursday, September 4th Guess 1: Steve Trying to Play Drums

Wednesday, September 3rd Guess 4: Self Inking Stamp

Wednesday, September 3rd Guess 3: Opening a Briefcase

Wednesday, September 3rd Guess 2: Deck Box Closing (Near a Boat)

Wednesday, September 3rd Guess 1: Ice Chest Closing

Tuesday, September 2nd Guess 4: Clipboard Clipping Shut

Tuesday, September 2nd Guess 3: Old Timey Cash Register Adding Up

Tuesday, September 2nd Guess 2: Bowling Pins Falling Down

Tuesday, September 2nd Guess 1: Door Knob Closing

Check out the rule here.