| 摘要 |
Two-way portable communication apparatus comprises a first casing part (53) containing transmission and reception assemblies, a second casing part (55) containing batteries, and an intermediate third casing part (54). The third casing part (54) presents inclined end faces (54a, 54b) to the first and second casing parts (53, 55), so that the assembled apparatus can be fitted into the shell of a helmet (50). |
