Pocket Rockers
AKA
        
    (None)
    Era
        
    1988–1991
    Format
        
    analog
    Developed by
        
    Fisher-Price
    (Max) Capacity
        
    5 minutes (per side)
    Size
        
    4 × 3 × 1 cm
    Fun facts
    - This was a toy format marketed to children; Each cassette included two songs played in mono
- This format played a proprietary version of miniature cassettes