The document introduces a wireless charger of a certain brand and model. The charger uses the latest wireless charging technology and can provide wireless charging for mobile phones, tablets and other devices.
This manual explains the features of the WD‑7002 caller‑ID wired telephone, including how to install the handset, connect the battery, and attach the telephone line. Detailed pre‑use settings cover time/date configuration, ringtone and volume selection, alarm, do‑not‑disturb, and dialing mode adjustments.
Operation instructions describe answering, holding, dialing, redial, call‑pause, and in‑call dialing functions, as well as how to use the memory for incoming and outgoing numbers. The document also lists technical specifications, power‑use guidelines, simple maintenance tips, and a troubleshooting section for common issues such as missing caller ID or no sound. This manual is written in Chinese.
| Dialing system | DTMF |
|---|---|
| DTMF high‑frequency group | 1209/1336/1477 Hz |
| DTMF low‑frequency group | 697/770/852/941 Hz |
| DTMF frequency error | ±1.5 % |
| Caller‑ID reception system | FSK/DTMF dual |
| Contrast levels | 5 levels, default level 3 |