This USB-C accessory gave my iPhone and Android a surprisingly useful functionality

2026-02-12 · Source: News and Advice on the World's Latest Innovations | ZDNET · Field: Technology & Digital — Internet of Things (IoT) & Connected Devices, Emerging Technologies & Innovation · Depth: Fundamental Awareness, short

Summary

The "Heat It" is a smartphone-powered device designed to reduce swelling and itchiness from insect bites. Available on Amazon for $30 for a limited time (regularly $40), this tiny dongle connects to a smartphone via USB-C or Lightning port. Users download an app (iOS/Android) to control the device, which heats its tip to a maximum of 124°F/51°C. The app offers modes for adults and children, sensitive skin, and adjustable application times. Each treatment consumes less than 0.1% of a smartphone's battery. The device has been tested effectively on various bites, including horsefly, mosquito, and dog flea bites, providing relief superior to many over-the-counter creams.

Key takeaway

For outdoor enthusiasts or anyone frequently bothered by insect bites, consider integrating the "Heat It" device into your first-aid kit. Its effectiveness in reducing itchiness and swelling, combined with its portable, chemical-free operation, offers a compelling alternative to traditional creams and ointments, potentially saving you money and preventing complications from scratching.

Key insights

Smartphone-powered heat therapy effectively reduces insect bite swelling and itchiness.

Principles

• Localized heat reduces bite symptoms.
• Early application maximizes effectiveness.

Method

Download the app, plug in the dongle, select settings (adult/child, sensitivity, duration), heat the device to 124°F/51°C, and apply to the bite until the timer completes.

In practice

• Use for mosquito, horsefly, and flea bites.
• Apply multiple times for persistent itching.

Topics

• Insect Bite Treatment
• Smartphone Accessories
• Portable Health Devices
• Thermotherapy
• Consumer Gadgets

Best for: General Interest, Tech Journalist, Marketing Professional

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Editorial summary, takeaway, and curation by AIssential. Original article published by News and Advice on the World's Latest Innovations | ZDNET.