BLE Dice*The appearance of the latest version dice is subject to the actual product. Stays ReadyFor Years BLE Dice doesn't need to be charged. Its battery lasts so long, you might forget it even runs on one. From our first batch of test units, nearly 200 dice, 93% were still running at over 85% capacity after two years. One of our earliest test dice has now been running for over three years, and its still going. The System Behind the Dice BLE Dice is more