What is the ATR channel strategy?

Could you elaborate on the ATR channel strategy? I'm curious to understand its core principles and how it's implemented in cryptocurrency trading. Specifically, how does it determine entry and exit points? Does it rely solely on technical indicators or does it incorporate other forms of analysis? Additionally, how sensitive is the strategy to market volatility? Could you provide an example of how a trader might utilize the ATR channel strategy in a real-world trading scenario? I'm particularly interested in how it can be applied to cryptocurrencies, given their unique price movements and market characteristics.