A wireless module includes a substrate that includes a first portion, a second portion, and a first flexible portion connecting the first portion and the second portion to each other. The first portion includes a circuit element that is mounted on the first main surface and a circuit including at least the circuit element. The second portion includes a first coil connected to the circuit. The first portion and the second portion face each other. A magnetic sheet is disposed on a second main surface of the second portion, and a battery is disposed between the second main surface of the first portion and the magnetic layer.

A hand-held power tool, in particular an electric hand tool, includes an identification module and a housing. The identification module includes a transponder having at least one data store configured to store identification information and a radio module configured to transmit the identification data. The identification module is integrated into the housing.

The present disclosure provides an electronic shelf label, including a rear shell (1), a screen (4), a protective sheath (5) and a lens (6). The protective sheath (5) is sheathed on an outer side of the screen (4), an accommodation groove (101) is formed on the rear shell (1), and the screen (4) is disposed in the accommodation groove (101). The lens (6) is disposed to cover a groove opening of the accommodation groove (101) and is connected to an edge of the rear shell (1). A portion of the protective sheath (5) located at an edge of a display port of the screen (4) is supported between the lens (6) and the screen (4), so that a press-resistant gap (8) is reserved between the lens (6) and the screen (4). The present disclosure solves the technical problems that the electronic shelf label is easy to be damaged and the use effect is poor.

A wireless tracking system for tracking and monitoring assets is disclosed herein. The wireless tracking system comprises wireless tags. A wireless tag is configured to track a respective asset during delivery to a shipping address. After the asset has arrived at the shipping address, the wireless tag is released to a delivery service to be delivered to the return address for recycling or renovating an electronic component of the wireless tag, e.g., by wired or wirelessly recharging the energy source. In some embodiments, the wireless tracking system remotely monitors a performance level of the energy source via a wireless communication with the wireless tag and, responsive to the performance level of the energy source being below a threshold level, transmits a notification to a user of the wireless tracking system to ship the wireless tag to the return address for renovation or recycling.

Tracker tags, smart tags, locator tags, and the like are provided. A portable tracker device, according to one implementation, includes a housing having a front cover and a back cover. The portable tracker device also includes Radio Frequency (RF) circuitry configured to operate within at least one of a Bluetooth (BT) frequency range and an Ultra-Wideband (UWB) frequency range. Also, the portable tracker device includes a piezoelectric device having a first conductive plate and a second conductive plate. The RF circuitry utilizes at least one of the front cover, the back cover, the first conductive plate, and the second conductive plate as one or more antennas.