Some users describe the audio as weak or "crackly," noting it is poor even for its small speaker size.
Activate the integrated white night light using its dedicated control button for subtle bedside illumination. Grays Auction Maintenance and Troubleshooting Battery Backup: thomson bluetooth digital alarm clock radio btc2138 manual
Before diving into the features, ensure your clock is powered correctly. Product Guide: Thomson Bluetooth Digital Alarm Clock Radio
SOURCE until you see the FM frequency (e.g., 87.5 MHz).PLAY/SCAN button to auto-scan and save stations.UP/DOWN buttons to skip through saved stations.| Feature | Manual Description | Real-World Implication | |--------|-------------------|------------------------| | | 0.9” red LED, 4-level dimmer | Legible at night, but red LED can bleed in pitch darkness. Dimmer is essential. | | Bluetooth | v5.0, 33ft range, auto-reconnect | Good for streaming. v5.0 means decent battery life if used as portable speaker (though mains-powered). | | FM Radio | Auto-scan, 10 presets | Basic. No mention of RDS (radio text) – so no song titles. | | Dual Alarms | Separate weekday/weekend settings | Critical for shift workers or couples. Manual shows separate alarms for Mon-Fri vs Sat-Sun. | | USB Charging | 5V/1A output | Slow by modern standards (5W). OK for overnight charging of an old phone, but not a fast-charging iPad or modern Android. | | Backup Battery | CR2032 (keeps time during power loss) | Does NOT power the alarm to wake you – only preserves clock settings. Major distinction. | Press SOURCE until you see the FM frequency (e