It did sneak up on me a few times and I felt that I had either burnt my wrist or had frost bite. Be careful because the temperature change does fluctuate in waves, it is easy to have the temperature to increase to something quite uncomfortable and painful. Either temperature starts gradually slowing increasing in intensity then fading away again in a wave. The cool setting feels like someone put an ice cube directly on the inside of your wrist while the warm setting is like pressing a hot cup of coffee there instead.

The feel of the device does take some time to get use too. To adjust the temperature during the session, press the button corresponding to the direction you wish the temperature to move. Press either button to turn it on then select either the hot or cold button to start a ten minute session. The Embr Wave 2 is controlled by two buttons on the side of the Wave 2 or through the app connected via Bluetooth. The center LED will glow green while charging, white when the device is turned on, blue in cooling mode and orange in warming mode. The LED in the middle of the buttons is the indicator light while the one on the far left side of the image is only used for firmware updates. The button with the dot is the cold button while the non marked on is hot. On the side of the Embr Wave 2 is two buttons for controlling the device. However, do not submerge it, it is not waterproof. I accidentally splashed some soup on it and after wiping it down with a damp rag it was no worse for the wear. Despite having a large conductive pad on the back, it is safe to wash your hands with it on. The back of it has the large thermoelectric pad and two charging dots that line up with the magnetic charging puck. While the metal looks nice at first, I did find it did get scratched up pretty quickly since it is worn on the inside of the wrist and easily knocked into things.

The front is mostly metal with a small plastic top slice. The Embr Wave 2 has a very simple design.

Band: 18 mm stainless steel with magnetic clasp.

Weight: 2.2 oz (63 g) with default band.

The Embr Labs Wave 2 is a wearable personal temperature control device that allows you to warm or cool your body through thermoelectricity.

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