Abstract: An electronic system and a control method thereof are provided. The electronic system includes a first device, a second device and a control device. The first device includes a first processor and a first control module, and the first control module is electrically connected to the first processor. The second device is detachably disposed on the first device. The second device includes a second processor and a second control module, and the second control module is electrically connected to the second processor. The control device is detachably connected to the second device, and the first device, the second device and the control device are coupled to each other.

Abstract: An electronic device and a usage method thereof are provided. The electronic device includes a first device, a second device and a control device. The first device includes a first processor and a first control module, and the first control module is electrically connected to the first processor. The second device is detachably disposed on the first device. The second device includes a second processor and a second control module, and the second control module is electrically connected to the second processor. The control device is detachably connected to the second device, and the first device, the second device and the control device are coupled to each other.

Abstract: The disclosure provides a portable electronic device, including a main body, a side cover, a decorative plate, and an elastic element. The side cover is pivotally disposed on a side edge of the main body. The side cover is movable between a first position and a second position relative to the main body. The side cover abuts against the main body when in the first position. The side cover forms an angle with the main body when in the second position. The decorative plate includes a first edge, a second edge, and a third edge. The first edge is pivotally disposed on the side cover. The second edge abuts against the main body when the side cover is in the first position. The second edge is separate from the main body and the third edge abuts against the main body when the side cover is in the second position. The elastic element is disposed at the second edge. The elastic element supports the decorative plate when the side cover is in the second position.

Abstract: The disclosure provides a portable electronic device, including a main body, a side cover, a decorative plate, and an elastic element. The side cover is pivotally disposed on a side edge of the main body. The side cover is movable between a first position and a second position relative to the main body. The side cover abuts against the main body when in the first position. The side cover forms an angle with the main body when in the second position. The decorative plate includes a first edge, a second edge, and a third edge. The first edge is pivotally disposed on the side cover. The second edge abuts against the main body when the side cover is in the first position. The second edge is separate from the main body and the third edge abuts against the main body when the side cover is in the second position. The elastic element is disposed at the second edge. The elastic element supports the decorative plate when the side cover is in the second position.

Abstract: A protective cover adaptive to an electronic device is provided. The protective cover comprises a connecting portion, a cover body and a light guide plate. A side of the cover body is connected to the connecting portion and is movable relative to the connecting portion. The light guide plate includes a light input surface, an attachment surface, and a light output surface. The light input surface and the attachment surface are opposite to each other. The light guide plate is connected to the cover body via the attachment surface and light from a light source is transmitted through the light input surface and output from the light output surface.

Abstract: A protective cover adaptive to an electronic device is provided. The protective cover comprises a connecting portion, a cover body and a light guide plate. A side of the cover body is connected to the connecting portion and is movable relative to the connecting portion. The light guide plate includes a light input surface, an attachment surface, and a light output surface. The light input surface and the attachment surface are opposite to each other. The light guide plate is connected to the cover body via the attachment surface and light from a light source is transmitted through the light input surface and output from the light output surface.

Abstract: A handheld singing apparatus, capable of being cooperated with a handheld electronic device having a screen for operation, includes a holding member, a supporting seat and a connecting portion. The holding member is approximately formed as rod shaped and has a first end and a second end opposite to the first end. The supporting seat is capable of receiving and fastening with the handheld electronic device, so that the screen is faced to a direction far from the holding member. The connecting portion is connected between the first end of the holding member and the supporting seat, so that the supporting seat is rotatable relative to the holding member.

Abstract: A handheld singing apparatus, capable of being cooperated with a handheld electronic device having a screen for operation, includes a holding member, a supporting seat and a connecting portion. The holding member is approximately formed as rod shaped and has a first end and a second end opposite to the first end. The supporting seat is capable of receiving and fastening with the handheld electronic device, so that the screen is faced to a direction far from the holding member. The connecting portion is connected between the first end of the holding member and the supporting seat, so that the supporting seat is rotatable relative to the holding member.

Abstract: A protective shell applicable to a handheld electric apparatus includes a back plate and a supporting plate. The back plate has a fixing portion and a first figure layer disposed opposite to the handheld electric apparatus. The supporting plate has a second figure layer, a connecting portion and a bendable portion. The second figure layer is disposed on the supporting plate. The connecting portion is disposed on the supporting plate for connecting with the fixing portion. The bendable portion is disposed on the supporting plate. In a first state, the supporting plate is provided to shield the first figure layer and the second figure layer is revealed to form a first expression figure. In a second state, the bendable portion is bent to reveal the first figure layer, so that the first figure layer and the supporting plate are combined to form a second expression figure.

Abstract: A protective shell applicable to a handheld electric apparatus includes a back plate and a supporting plate. The back plate has a fixing portion and a first figure layer disposed opposite to the handheld electric apparatus. The supporting plate has a second figure layer, a connecting portion and a bendable portion. The second figure layer is disposed on the supporting plate. The connecting portion is disposed on the supporting plate for connecting with the fixing portion. The bendable portion is disposed on the supporting plate. In a first state, the supporting plate is provided to shield the first figure layer and the second figure layer is revealed to form a first expression figure.