An improved headset is provided to selectively distribute the weight of the headset while securely registering the headset comfortably on a wearer's head. The headset comprises one or more compliant arms and a frame to selectively distribute the weight of the headset and secure the headset to the wearer's head without the need for straps or leavers. The compliant arms provide a normalizing force through elastic body deformation to selectively distribute the weight of the headset.

An improved headset is provided to selectively distribute the weight of the headset while securely registering the headset comfortably on a wearer's head. The headset comprises one or more compliant arms and a frame to selectively distribute the weight of the headset and secure the headset to the wearer's head without the need for straps or leavers. The compliant arms provide a normalizing force through elastic body deformation to selectively distribute the weight of the headset.

A support for video playback devices includes a headwear device, a support mechanism, and a holding mechanism. The support mechanism is connected to the headwear device. The holding mechanism is connected to the support mechanism, and is used to hold a video playback device. Viewing distance and angle of the video playback device is adjusted by varying relative positions of the headwear device and the support mechanism and by varying relative positions of the support mechanism and the holding mechanism. The structure of the support for video playback devices is simple. The support for video playback devices is useful when a user lies down, thus improving the user's sense of experience.

A support for video playback devices includes a headwear device, a support mechanism, and a holding mechanism. The support mechanism is connected to the headwear device. The holding mechanism is connected to the support mechanism, and is used to hold a video playback device. Viewing distance and angle of the video playback device is adjusted by varying relative positions of the headwear device and the support mechanism and by varying relative positions of the support mechanism and the holding mechanism. The structure of the support for video playback devices is simple. The support for video playback devices is useful when a user lies down, thus improving the user's sense of experience.

A stand for a portable media device having a cap attached to a base. The base has body having a series of openings through which ballast is allowed to flow when the stand is being positioned. The ballast preferably made up of beads, such as glass or plastic, or sand. The ballast and the base are positioned within a bladder that is preferably a stretchy or resilient material. A rounded conical cap is attached to the top of the bladder and partially encapsulates the bladder. The cap is configured for positioning of a portable media device on the cap and/or for attachment of a portable media device to the cap. The cap serves to provide structure to the rounded bladder as well as to distribute the weight of a portable media device positioned on the cap. The cap has preferably a magnetic mechanism that is configured to magnetically attach to a portable media device or to a magnet position within a portable media device or affixed to the portable media device or a case on the portable media device. Alternate mechanical attachment mechanisms can be utilized in addition to or in alternative to the magnetic attachment. Preferably a bottom side of the bladder has a gripping surface that allows the bladder to be positioned on a surface and to increase friction between the bladder and the surface on which it is positioned. Preferably the stand is provided with a charging mechanism to charge a portable media device. The charging mechanism can be a wired and/or wireless charging mechanism. Preferably the stand has a port that is configured for receiving wired electricity from an external source.

A helmet mount includes a latching plate defining a latching opening with wide and narrow portions and a notch. A latching spring below the latching plate urges a spring portion against the wide portion. The shaft of a first pin on an accessory mount is sized to fit in the narrow portion while its widened head only fits through the wide portion. The spring portion engages the widened head and prevents sliding within the narrow portion. The shaft of a second pin slides within the notch with its widened head preventing removal. A wedge may be slid against the spring to retract the spring portion allowing removal of the first pin. Electrical contacts on the helmet mount may engage electrical contents on the accessory mount to supply power to an accessory such as night-vision goggles.

A helmet mount includes a latching plate defining a latching opening with wide and narrow portions and a notch. A latching spring below the latching plate urges a spring portion against the wide portion. The shaft of a first pin on an accessory mount is sized to fit in the narrow portion while its widened head only fits through the wide portion. The spring portion engages the widened head and prevents sliding within the narrow portion. The shaft of a second pin slides within the notch with its widened head preventing removal. A wedge may be slid against the spring to retract the spring portion allowing removal of the first pin. Electrical contacts on the helmet mount may engage electrical contents on the accessory mount to supply power to an accessory such as night-vision goggles.

A multifunctional rotatable stand frame for a tablet electronic device comprises a seat; a bottom of the seat serving to connect a back side of the tablet electronic device; a disk positioned above an upper side of the seat and being rotatably installed to the seat; a center of the disk having a through hole; a fixing shaft installed on the seat and penetrating through the through hole of the disk; the upper side of the seat forming with a circular wall; the fixing shaft being located at a center of the circular wall; an inner side of the circular wall forming with a plurality of trenches; a buckling ring installed at a bottom side of the disk and surrounding an outside of the through hole; the buckling ring being engaged to an inner side of the circular wall.

A gimbal assembly and a hand-held device are provided. The gimbal assembly includes a gimbal, an image pick-up device and a light-transmitting cover covering the gimbal and the image pick-up device. The gimbal includes a holding assembly, the holding assembly is configured to drive the image pick-up device to rotate around at least one axis in the light-transmitting cover. The at least one axis passes through a spherical center of the light-transmitting cover, and upon the image pick-up device rotating, an optical axis of a lens of the image pick-up device always coincides with a normal line of a tangent plane at an intersection of the optical axis and the light-transmitting cover.

A gimbal assembly and a hand-held device are provided. The gimbal assembly includes a gimbal, an image pick-up device and a light-transmitting cover covering the gimbal and the image pick-up device. The gimbal includes a holding assembly, the holding assembly is configured to drive the image pick-up device to rotate around at least one axis in the light-transmitting cover. The at least one axis passes through a spherical center of the light-transmitting cover, and upon the image pick-up device rotating, an optical axis of a lens of the image pick-up device always coincides with a normal line of a tangent plane at an intersection of the optical axis and the light-transmitting cover.