Rofeer Manuals & User Guides

Breathalyzer EK918 Portable Fuel Cell Sensor Alcohol Meter Product Information The Breathalyzer EK918 is a device that measures blood alcohol concentration (BAC) in the breath. It is equipped with alarms…

Comprehensive user manual for the Rofeer MP3 Music Player. Includes instructions on button operations, file transfer, charging, playback settings, and troubleshooting.