Compare the features of Bumble Bee Models
| Bumble Bee Model (G8) | Gamma Pro | Pro | ||
| Note: Some devices may change in design or appearance. |  |  | ||
| Price | $199 USD | $149 USD | ||
| Wave Form | Biphasic Square Wave | Biphasic Square Wave | ||
| Frequencies | 0.5, 2.5, 4.5, 9.5 16, 40 and 100 Hz | 2 – 39 HZ | ||
| Freq Control | Yes | Yes | ||
| Intensity Control | Yes | Yes | ||
| Maximum Current | 5 mA | 5 mA | ||
| Pulse Width | 1.5 ms | 1.5 ms | ||
| Timer | N/A | N/A | ||
| Electrode Type | Gelled Pads / Ear Clips | Gelled Pads / Ear Clips | ||
| Delta 1-4 Hz |  | | ||
| Theta 4-8 Hz | | | ||
| Alpha 8- 12 Hz | | | ||
| Beta 12-39 Hz | | | ||
| Gamma 40 / 100 Hz | |  | ||
| Lambda 200 Hz | | | ||
| Ripple 220 Hz | | | ||
| Omega 1000 Hz | | | ||
| LCD display | | | ||
| Mains Powered |  | | ||
| External Battery Powered (9v) | | | ||
| Anxiety | | | ||
| Insomnia | | | ||
| Depression | | | ||
| PTSD | | | ||
| General Wellbeing | | |