This document is the operating instructions for the cassette player model WM-EX651, published by Sony Corporation in 2004. It provides instructions on how to use the device and important precautions.
This manual provides step‑by‑step instructions for preparing, operating, and maintaining the Sony WM‑EX651 Walkman cassette player. It covers battery installation, charging procedures, safety warnings, and how to use the remote control and playback functions.
The document also lists technical specifications, recommended accessories, and troubleshooting tips such as battery life, tape length limits, and hearing‑safety guidelines.
| Frequency response (playback) | 30 – 18 000 Hz |
|---|---|
| Headphone load impedance | 8 – 300 Ω |
| Power requirement – rechargeable battery | 1.2 V DC × 1 |
| Power requirement – dry AA battery | 1.5 V DC × 1 |
| Dimensions (W × H × D) | ≈ 76.4 mm × 108.9 mm × 21.8 mm |
| Mass (main unit only) | ≈ 140 g |
| Supplied accessories | Battery case, AC power adaptor, charging stand, headphones/earphones with remote, rechargeable battery (NH‑10WM, 1.2 V, 900 mAh), carrying pouch, rechargeable battery case |
| Battery life (rechargeable NH‑10WM) | ≈ 68 hours playback |
| Battery life (dry AA battery) | ≈ 46 hours playback |
Full charging takes about 6 hours.
No. The manual advises not to use the unit while charging.
The manual recommends not using tapes longer than 90 minutes.