Abstract: A bottle neck insert can include a cylindrical body having a first end and a second end, the cylindrical body having a plurality of rings; a flange provided at the first end, the flange protruding outwardly from the cylindrical body in a radial direction of the cylindrical body; and a valve section at the second end, the valve section having at least one slit, wherein the flange is configured to seat the insert onto a neck of a bottle and the valve section is configured to allow a pipette to pass through. A bottle storage system, can include a bottle having a neck with a smooth interior surface; an insert that is configured to fit inside the neck of the bottle; and a pipette assembly that is configured to proceed through the insert into the bottle.

Abstract: The flexible earphone cover has a flexible main body and a flexible ear cone that extends from the main body. The flexible main body is configured to substantially encase a portion of an earphone. The flexible main body defines an internal cavity for receiving the earphone. It also defines a first opening at a side of the cavity for receiving the earphone there-through. The flexible main body defines a second opening at a side of the cavity. The second opening is smaller than the first opening. Finally, the flexible main body defines a third opening at a side of the cavity. The third opening is smaller than the first opening and the second opening. The flexible ear cone defines a converging passageway from the second opening to an exit configured to direct sound into an ear canal of an ear of a user.

Abstract: A bottle neck insert can include a cylindrical body having a first end and a second end, the cylindrical body having a plurality of rings; a flange provided at the first end, the flange protruding outwardly from the cylindrical body in a radial direction of the cylindrical body; and a valve section at the second end, the valve section having at least one slit, wherein the flange is configured to seat the insert onto a neck of a bottle and the valve section is configured to allow a pipette to pass through. A bottle storage system, can include a bottle having a neck with a smooth interior surface; an insert that is configured to fit inside the neck of the bottle; and a pipette assembly that is configured to proceed through the insert into the bottle.

Abstract: The flexible earphone cover has a flexible main body and a flexible ear cone that extends from the main body. The flexible main body is configured to substantially encase a portion of an earphone. The flexible main body defines an internal cavity for receiving the earphone. It also defines a first opening at a side of the cavity for receiving the earphone there-through. The flexible main body defines a second opening at a side of the cavity. The second opening is smaller than the first opening. Finally, the flexible main body defines a third opening at a side of the cavity. The third opening is smaller than the first opening and the second opening. The flexible ear cone defines a converging passageway from the second opening to an exit configured to direct sound into an ear canal of an ear of a user.

Abstract: The flexible earphone cover has a flexible main body and a flexible ear cone that extends from the main body. The flexible main body is configured to substantially encase a portion of an earphone. The flexible main body defines an internal cavity for receiving the earphone. It also defines a first opening at a side of the cavity for receiving the earphone there-through. The flexible main body defines a second opening at a side of the cavity. The second opening is smaller than the first opening. Finally, the flexible main body defines a third opening at a side of the cavity. The third opening is smaller than the first opening and the second opening. The flexible ear cone defines a converging passageway from the second opening to an exit configured to direct sound into an ear canal of an ear of a user.

Abstract: The flexible earphone cover has a flexible main body and a flexible ear cone that extends from the main body. The flexible main body is configured to substantially encase a portion of an earphone. The flexible main body defines an internal cavity for receiving the earphone. It also defines a first opening at a side of the cavity for receiving the earphone there-through. The flexible main body defines a second opening at a side of the cavity. The second opening is smaller than the first opening. Finally, the flexible main body defines a third opening at a side of the cavity. The third opening is smaller than the first opening and the second opening. The flexible ear cone defines a converging passageway from the second opening to an exit configured to direct sound into an ear canal of an ear of a user.