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Resume — lets you easily resume lis- tening to the track that was selected when you stopped playing a CD.

Three Power Sources — let you power your CD player from two stan- dard or rechargeable nickel-cadmium

AAbatteries, your vehicle’s battery us- ing the supplied DC adapter, or stan- dard AC power using an optional AC adapter.

Power/Charging Jack — lets you charge nickel-cadmium batteries without removing them from the CD player.

Lighted Buttons and Display — when you operate the CD player with an AC or DC adapter, the buttons and display light up for easy viewing in the dark.

Supplied CD-to-Cassette Adapter

—lets you connect the CD player di- rectly to a cassette player in your home or vehicle.

Line Out Jack and Supplied Y-

Cable — makes it easy to connect the CD player to your sound system’s low- level inputs.

5- or 3-Inch CD Compatible

Carrying Pouch (Supplied with 42- 5076 only)

Important: You need a pair of stereo headphones, earphones, or amplified speakers, or a home audio or auto- sound system to use your CD player. Your local RadioShack store carries a complete line of headphones, ear- phones, speakers, and audio sys- tems.

CDs that can be played on this CD player have this mark on them:

The CD player’s advanced technology makes it simple to operate. But, be sure you read this Owner’s Manual completely so you can take advantage of all its advanced features.

We recommend you record your CD player’s serial number here. The num- ber is inside the CD player’s battery compartment.

Serial Number __________________

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Optimus CD-3690 (42-5076), CD-3680 (42-5075) owner manual Line Out Jack and Supplied Y
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CD-3690 (42-5076), CD-3680 (42-5075) specifications

The Optimus CD-3680 and CD-3690, products 42-5075 and 42-5076 respectively, represent a significant advancement in compact disc players, offering a blend of innovative technology and user-friendly features. Designed for both audiophiles and casual listeners, these models exemplify the quality and convenience of modern audio playback.

One of the standout features of the Optimus CD-3680 and CD-3690 is their high-fidelity audio output. Both models utilize advanced digital-to-analog converters (DACs), ensuring minimal distortion and maximum clarity in sound reproduction. The emphasis on audio quality allows users to enjoy their favorite music as the artists intended, with rich tones and intricate detail across the frequency spectrum.

In terms of technology, these CD players incorporate a robust error correction system that reduces playback issues that may arise from scratches or dirt on CDs. This feature enhances the reliability of audio playback, allowing users to listen to a wider variety of discs without interruption. Additionally, both models are equipped with a powerful motor and precision laser mechanisms, which contribute to swift and accurate disc reading, minimizing access time and enhancing overall user experience.

The design of the CD-3680 and CD-3690 is both sleek and functional, featuring a user-friendly interface that includes an intuitive remote control. This allows for easy navigation through tracks and playlists, empowering users to tailor their listening experience to their preferences. The clear display screen shows essential information such as track number, time elapsed, and remaining time, ensuring that users are always informed about their audio playback.

Another notable characteristic of these models is their compatibility with various audio formats, including CD-R and CD-RW. This versatility makes it easy for users to enjoy personalized playlists or compilations, broadening the scope of their listening choices.

In summary, the Optimus CD-3680 and CD-3690 stand out in the crowded market of audio players. Their high-quality audio output, advanced error correction technologies, sleek design, and user-friendly functionalities make them ideal for anyone seeking a reliable and enjoyable compact disc listening experience. With these models, music lovers can rediscover the charm of CDs with modern performance enhancements.
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