Sone523mp4 Portable ★ Popular

| Category | Typical Specification | |----------|----------------------| | | 2.5 – 3.0‑inch TFT colour screen | | Storage | 4 GB, 8 GB, 16 GB internal; expandable up to 256 GB via microSD | | Video playback | MP4, AVI, AMV, etc. (quality varies) | | Audio playback | MP3, WMA, AAC (often no support for high‑res codecs) | | FM radio | Stereo, with manual and auto‑scan | | Voice recording | Built‑in microphone; records to WAV/MP3 | | E‑book | TXT files | | Battery | Built‑in lithium‑ion (non‑replaceable in most models) | | Ports | 3.5 mm headphone jack, micro‑USB charging, microSD slot | | Dimensions | ≈ 10 × 5 × 1 cm | | Weight | ~50 – 80 g |

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