The Dantec Clavis device provides EMG signal acquisition with an audible signal and electrical stimulation with a current range of 0-15 mA. It allows for pulse duration selection between 0.1 or 0.2 ms and frequency selection between 1 or 2 Hz, ensuring safe, guided drug injection. Switching between the two methods is simple with the press of a button, with no delay. To enhance the device's use, the manufacturer has designed special Bo-ject type needles for signal acquisition/injection, ideal for injecting substances such as botulinum toxin (Botox). These needles are engineered to provide the best signal acquisition while maximizing patient comfort. They are compatible with luer-lock and slip-fit syringes.