| Toote kood | BY-WM4 Pro-K3 |
| Tootja | Boya |
| Directionality | Omnidirectional |
| Frequency response | 35 – 14 000 Hz |
| Sensitivity | -90 dB |
| Impendance | 32Ω |
| Signal to noise ratio | 84 dB |
| Power source | 2 × AAA alkaline battery or NiMH rechargable battery |
| Connector | Apple Lightning; 3.5 mm |
| Package contents | Receiver; Transmitter; Clip-on microphone |
| Ladu | Laos | Kättetoimetamise aeg |
| NDC | 25tk | 4-5 PÄEVA |