A device for holding and charging an electronic cigarette element includes a housing configured for coupling to a rear of a mobile computing device, the housing including a rechargeable battery, a first power port in the housing, the first power port conductively coupled to the rechargeable battery and configured for accepting external power for recharging the rechargeable battery, a first receptacle in the housing, wherein the first receptacle is configured to accept an electronic cigarette element, a charging terminal conductively coupled to the rechargeable battery, wherein when the electronic cigarette element contacts the charging terminal, the rechargeable battery recharges a battery of the electronic cigarette element, and, a second receptacle in the housing, wherein the second receptacle is configured to accept a cartridge for the electronic cigarette element.

Systems, devices, and methods for proportionally balancing power during wireless communication are provided. The disclosures provide for an integrated radio in which the functionality of an active radio and a passive radio are integrated into a single radio, with the active and passive radios each being configured to operate in three different modes: active, passive, and backscatter. Based on power and communication link information, the integrated rode is able to balance the modes at which the two radios are operated, thereby optimizing power consumption of the device into which the integrated radio is incorporated. The resulting systems, devices, and methods lead to ultra-low power consumption that enables these communication techniques to enhance computing devices from smartwatches to laptops. Devices incorporating the integrated radios, and methods for power-proportionally exchanging data, among other systems, devices, and methods, are also provided.

Embodiments provide for a handheld device with a unified desktop for integrating the functionality of the handheld device with a larger computer system. When connected to a peripheral display and/or a display of the larger computer system, the handheld device provides a unified desktop displayed across the screen(s) of the handheld device and the peripheral display. The unified desktop unifies the functionality provided by the larger computer system and the handheld functionality, e.g., communication applications (e.g., phone, SMS, MMS). A user can seamlessly interact with applications, e.g., open, move, close, receive notifications, on the unified desktop whether the applications are displayed on the screens of the handheld device, or the peripheral display of the larger computer system.

One variation of a portable radio system includes: a portable radio configured to transmit and receive audio communication, including a connector receptacle arranged on a rear face of the portable radio and a channel extending from the connector receptacle; a cable, configured to couple the portable radio to a secondary device, including a straight section configured to seat within the channel and defining a length greater than a length of the channel; a connector, coupled to the straight section of the cable, configured to seat within the connector receptacle to couple the cable to the portable radio in an upward and downward orientation; and a clip including a base section configured to transiently couple to the body over the connector and a clamp section configured to pivot relative the base section and to attach the portable radio to a user.

A cover or shield for a mobile radio includes a first cylindrical portion configured to fit a first knob, a second cylindrical portion configured to fit a second knob, and a bridge. A first end of the bridge may be fixed to the first cylindrical portion, and a second end of the bridge may be fixed to the second cylindrical portion. The bridge may be configured to orient the first cylindrical portion and the second cylindrical portion in alignment with the first knob and the second knob, respectively. In one example, the first cylindrical portion includes a cut-out configured to allow manipulation of the first knob by an operator of the portable radio. In another example, the second cylindrical portion is shorter than the second knob providing access to an upper section of the second knob by an operator of the portable radio.

A stand for a mobile device. The stand includes a back plate having a pair of parallel tracks, the back surface of the back plate attached to a back surface of the mobile device. The stand includes a sliding plate having a first end coupled to the back plate and configured to slide along the pair of parallel tracks. The stand includes a pivot plate having a first end connected to the second end of the sliding plate at a hinge, a second end connected to the back plate, and the pivot plate is configured to pivot relative to the back plate when the first end of the sliding plate slides along the pair of parallel tracks. The pivot plate, the sliding plate, and the back plate form one or more channels for receiving one or more fingers of a user when the stand is in the deployed position.

A head guard is provided. The head guard includes one or more sensors as part of an sensory input and communications system. The head guard wirelessly communicates data to remote computing devices for intelligent data collection.

An electronic device may comprise: a first cover; a second cover coupled to the first cover and configured to perform a sliding operation; a rollable display including a first display area visible in a rolled state and a second display area unrolled in response to the sliding operation of the second cover; a first antenna including a plurality of first antenna elements disposed in the first display area of the rollable display; a second antenna including a plurality of second antenna elements disposed in the second display area of the rollable display; and a processor. The processor may be configured to: form a plurality of directional beams using the first antenna based on a first beam table in a rolled state of the rollable display, and to form a plurality of directional beams using at least a part of the second antenna elements and the first antenna based on a second beam table based on the size of a visible area of the rollable display increasing from the rolled state.

A dual-receiving and dual-transmitting two-way radio including a radio communication module and a control module. The radio communication module is configured to receive and transmit a communication signal on a primary channel or a secondary channel; the control module controls the radio communication module to monitor a communication signal on the primary channel and the secondary channel alternately, and controls the radio communication module to transmit a communication signal on the primary channel or the secondary channel; the radio communication module has a function of receiving and transmitting a communication signal on the primary channel and the secondary channel in separate periods, and the control module is also capable of selecting working channel numbers of the primary channel and the secondary channel respectively.

Disclosed are a method for controlling the volume of a wireless headset, a wireless headset and a mobile terminal. The method comprises: when the mobile terminal is connected to a wireless headset in an in-ear state, acquiring a target play volume range of the wireless headset; adjusting the play volume of the wireless headset within the target play volume range; when volume determination information from the wireless headset is received, determining that the play volume of the wireless headset at the moment the volume determination information is received is a target play volume value; and adjusting the play volume of the wireless headset to be the target play volume value. The play volume of a wireless headset suitable for a user can be automatically and quickly set.