From the four-hour K-line chart, there are seven consecutive bearish candles testing the lower support, followed by a rebound closing in the positive. However, the BOLL band is turning downward, and the auxiliary indicators show that the bearish momentum continues to be released, with no reduction in downward momentum. It is recommended to focus on high volatility during the day.

Bitcoin can be traded around 115900-116400, with a support level at around 115000.