Features :
- Sensitive chest piece with special diaphragm.
- Soft P.V.C. seamless tubing in attractive colours.
- Concealed / open spring chrome plated frames.
- Soft P.V.C. ear knobs.
| Model No. | Type | Chest Piece | Diaphragm | Bell | Frame | Tube |
| 70-0030 | Dual | AL (47mm) | 44mm | With inlaid ring | BR | Seamless |
| 70-0040 | Dual | BR (47mm) | 44mm | With inlaid ring | BR | Seamless |
| 70-0045 | Dual | SS (47mm) | 44mm | With inlaid ring | BR | Seamless |
| 70-0050 | Dual | AL (47mm) | 44mm | With outer ring | BR | Seamless |
| 70-0060 | Dual | BR (47mm) | 44mm | With outer ring | BR | Seamless |
| 70-0065 | Dual | SS (47mm) | 44mm | With outer ring | BR | Seamless |
| 70-0070 | Dual | AL (33mm) | 30mm | With outer ring | BR | Seamless |
| 70-0080 | Dual | BR (33mm) | 30mm | With outer ring | BR | Seamless |
| 70-0085 | Dual | SS (33mm) | 30mm | With outer ring | BR | Seamless |
