Abstract: An electromagnetic stylus includes a body, a core and an induction coil. The body includes a first shell and a second shell telescopically sleeved on the first shell. The core is received in and has a nib end extending out of the first shell. The induction coil is sleeved on one end of the core and is received in the first shell. The first shell is made of material without electromagnetic wave shielding capability. The second shell is made of material with electromagnetic wave shielding capability. The second shell is configured to slide along the first shell between two positions, to shield or not to shield part of the induction coil.

Abstract: A cover includes an upper cover, a lower cover, a fixing member fixed to the lower cover, and a sliding member positioned between the lower cover and the fixing member. The lower cover defines a notch. The sliding member includes at least one latching portion and a toggle that is slidably received in the notch. The upper cover defines at least one opening. The at least one latching portion is slidably received in the at least one opening correspondingly to connect the upper cover to the lower cover.

Abstract: A cover includes an upper cover, a lower cover, a fixing member fixed to the lower cover, and a sliding member positioned between the lower cover and the fixing member. The lower cover defines a notch. The sliding member includes at least one latching portion and a toggle that is slidably received in the notch. The upper cover defines at least one opening. The at least one latching portion is slidably received in the at least one opening correspondingly to connect the upper cover to the lower cover.

Abstract: An electronic device includes a casing defining a through opening, and a key assembly received in the opening. The key assembly includes a number of keys, an elastic strip corresponding to the number of keys, and two fixing members. The two fixing members fix the key assembly on the casing. Each fixing member includes a connection member, a pivot receiver connected to the connection member and a pivot extending through the pivot receiver fixed to the casing. A key assembly for an electronic device is also provided.

Abstract: An electromagnetic stylus includes a body, a core and an induction coil. The body includes a first shell and a second shell telescopically sleeved on the first shell. The core is received in and has a nib end extending out of the first shell. The induction coil is sleeved on one end of the core and is received in the first shell. The first shell is made of material without electromagnetic wave shielding capability. The second shell is made of material with electromagnetic wave shielding capability. The second shell is configured to slide along the first shell between two positions, to shield or not to shield part of the induction coil.