Abstract
A light weight, solid state 'bug in the ear' device is described which can be easily built for less than $ 13.00. The system is operated by a 9V transistor radio battery, is portable, and can be used as a regular intercom system when the 'bug in the ear' is not in use.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 685-686 |
| Number of pages | 2 |
| Journal | Behavior Therapy |
| Volume | 5 |
| Issue number | 5 |
| State | Published - 1974 |
| Externally published | Yes |
ASJC Scopus subject areas
- Clinical Psychology