| Business | Phone |
| Silver Screen & Sound Inc 8832 Orchard Tree Ln, Baltimore 21286 | (410) 296-0202 |
| Soundscape 406 W Cold Spring Ln, Baltimore 21210 | (410) 889-1134 |
| Starr Systems Design 1421 Clarkview Rd # 122, Baltimore 21209 | (410) 494-4310 |
| Stereo & Jewelry Exchange 3349 Greenmount Ave, Baltimore 21218 | (410) 467-2944 |
| Universal Beepers & Electronic 315 N Howard St, Baltimore 21201 | (410) 837-2141 |