The Gadget Guru: Onesonic strikes gold with superb speaker, and a smart tea mug hits the spot

This week’s gadgets:

Onesonic Quattro Bluetooth Speaker: a true joy to use

Onesonic wins star status with a spectacular speaker

Onesonic Quattro Bluetooth Speaker

Price: €219.99

Rating: *****

Onesonic has established its credentials as an impressive audio business worth watching with its headphones and earbuds over the past two years. But the Dublin firm has now really proven itself as a star of the Irish tech scene by delivering a Bluetooth speaker that is a joy to use.

The Quattro delivers crisp sound that fills a room ...