New electronics • Tested before dispatch • Tracked delivery
Plain-language guides to buying, choosing and using electronics mystery boxes.
Ease the module and speakers out before the wash and dry the fabric for a day; keep bedtime volume low with a timer; keep it off any child too young to pull it off. Living with a beanie you sleep in.
It works in the dark, ignores you in daylight, blinks when the cell is low, and fires at cats and radiators. Auto mode, a clean surface, the sensor aimed along your route, away from lamps and heat.
Two radios that must learn each other’s code and reach through your walls. Pull the tab, put the chime in learn mode, press the button, test from the door; indoors the range is a third of the box.
A cheap luggage scale reads within a tenth of a kilo if you lift straight, hold still and take the middle of three readings. Set the unit, leave half a kilo under the limit, and test it against flour.
An arc lighter is a lithium gadget with a spark on top: carry-on only on a US flight, one each, button covered, never checked, never charged on board. Posting rules, charging, what it cannot light.
A mini vacuum is a fan, a cell and a filter, and its suction lives in the filter. What it lifts and what it cannot, why the pascals mislead, the weekly wash that keeps it strong, and faults to claim.
A cooling pad takes a few degrees off a laptop whose vents its fans reach and nothing off one they miss. Find the vents, feel for the draught, run the lowest speed that helps, and keep it off the bed.
A card slot and a remote means offline; an app and a Wi-Fi password means your photos go through a server. How to fill each kind, why the stick says no files, and what to read before photos go up.
A smart plug is a relay with a printed limit: lamps, lights, chargers and fans are fine; heaters, kettles, motors and power strips are not. Read the amps, find the safety mark, feel it after an hour.
One silent earbud is usually a lost link or an uncharged bud, not a fault. Charge both, forget the device, take both out together, pair, and hard reset; clean the pins before blaming the bud.
