**Product Specifications:**
**Brand:** Mingxiaotang
**Model:** K15
**Description:** All-in-one language learning device for English and Chinese, no need for downloads or internet connection. Features word repeater, single track continuous playback, and various study modes.
**Features:**
- Word repetition with adjustable playback speed
- Listening and reading exercises with high-definition speaker
- Supports recording and memory card storage
- Syncs with national curriculum textbooks for primary, middle, and high school levels
- E-ink screen for eye protection and paper-like display
- Multiple memory retention intervals for effective learning
- Various listening exercises and modes for language proficiency improvement
- Dual headphone and speaker output options
- Customizable study plans and daily practice reminders
**Additional Information:**
- Compact and portable design for on-the-go learning
- Certified as a national high-tech enterprise with quality assurance
- Designed by renowned psychologist Hermann Ebbinghaus
**Packaging:** English Repeater device with word card functionality
(Note: The above specifications are based on the provided information about the Mingxiaotang brand and its English Repeater product.)