Review: Runner Diver2 Bone Conduction Swimming Headphones


Product shot of some headphones being immersed in water.

The good folk at Nank (Naenka) have sent me their latest waterproof Bluetooth headphones to review. Wear 'em while you're in the shower, swimming, jogging, or just on an endless sea of Zoom calls about quarterly budgets. Unboxing Bone Conducting??! Yup! Rather than sticking speakers in your ears, these literally rattle the bones in your […]

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Better Bluetooth Sound Quality on Microsoft Teams in Windows 11


Screenshot of a Windows setting screen.

Here's the problem: the current Bluetooth spec doesn't allow high-quality audio to be sent to a headset when it is also sending audio from the microphone. Instead, it switches to the Hands Free Profile (HFP) which only streams low quality mono sound. It makes Teams calls sound like garbage. The usual solution in Google Meet, […]

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Offline Messaging Apps Using Bluetooth


The green hash symbol which is the Briar logo.

Problem: My wife and I are going on a long plane journey and don't have seats next to each other. How can we communicate? Constraints: The plane WiFi is ruinously expensive. The in-seat messaging service isn't private. We both have Android phones. Preferences: Open Source. Secure. Easy to use. Solution: Use Bluetooth messaging app Briar. […]

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Review: Sennheiser EPOS ADAPT 560 Bluetooth Noise Cancelling Headset - plus Linux info


Diagram showing which buttons are which.

Back to the office! The only thing which makes other people bearable is being able to block out their chatter (sorry colleagues, I love you all dearly!). So I picked up this pair of on-ear Bluetooth headphones with active noise cancelation. They're pricey (a bit under £200) but are they any good? First impressions Not […]

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Review: OpenEar Trio Bluetooth headphones


Flat headphones sat outside my ears.

This is a curious set of headphones. The OpenEar Trio by Shenzen Alex Technology. They're completely flat and designed to sit outside the ears. They're designed so you can hear your surroundings. If you're outside exercising, it's useful to hear cars creeping up on you. If you're on a conference call, being able to hear […]

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Review - Phomemo Mini Bluetooth Printer


A hand-held pink cube with paper coming out of it.

All printers are objectively awful. But this might be the cutest little printer I've ever used! This is the Phomemo M02 Pro. If you remember the late, lamented Little Printer you'll immediately understand the appeal. Connect your phone to it, and immediately print out text, graphics, drawings, rules, Tweets, the weather, ANYTHING! It uses thermal […]

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Bluetooth MAC, K-Anonymity, and Population Privacy


List of Bluetooth devices.

I recently went to a university hackathon, where students were trying to invent novel ways to help prevent pandemics. This was purely an academic exercise - they were not developing a fully-fledged app, nor were they creating official policies. I spent some time with one group discussing the privacy implications of what they had built. […]

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USB-C powered Bluetooth Headphones - the Life Q10 from Anker


Headphone box.

I've been waiting for these for a long time. #LazyWeb can anyone find me some Bluetooth headphones which recharge via USB-C. All the C ones I've found are wired. — Terence Eden (@edent) November 4, 2016 Anker, through its sub-brand SoundCore - have released the "Life Q10" headphones. They're usually about £45 - but Amazon […]

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Why aren't there any USB-C powered Bluetooth Headphones?


Bluetooth Logo

Here's a weird market gap. Most modern phones use USB-C to charge. Increasingly, they forego a headphone jack in favour of using Bluetooth. Peachy! But all of the Bluetooth headphones that I can find are charged via Micro USB. Which is bloody annoying! I want to charge my phone, laptop, camera, games console, and headphones […]

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Headphones displaying album art


A woman wearing headphones.

Many years ago, when I worked for a mobile phone company, a group of us were encouraged to come up with crazy ideas which the organisation could patent. I had one idea come this close to getting through until someone found an unnervingly similar patent and the whole thing was dropped. Well, it has been […]

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