5.0 (backwards compatible with 2.0, 3.0, and 4.0). Voltage Input: 5V – 12V DC.
: The JieRui-BT 5908 Manual on Manuals.plus provides detailed installation and troubleshooting steps. jie rui bt 5908 manual kit pdf
From user reports across woodworking and machinist forums, here are three problems the BT-5908 PDF manual solves immediately: 5.0 (backwards compatible with 2.0