Sony MZ-E77 MiniDisc Player

Sony MZ-E77 MiniDisc PlayerSony MZ E77 MiniDisc player (silver). Quantity 1. Used. * Player only. No other items, batteries, or accessories are included in the sale * ** This sale does not include any way of powering the device. Unless otherwise stated, this device requires a special kind of rechargeable 'gumstick' battery that is inserted into the device. Please either ensure you are familiar with this requirement in advance, or reach out to us if you are unsure. ** Summary: A

Sony MZ-E77 MiniDisc player (silver). Quantity 1. Used.
* Player only. No other items, batteries, or accessories are included in the sale *
** This sale does not include any way of powering the device. Unless otherwise stated, this device requires a special kind of rechargeable 'gumstick' battery that is inserted into the device. Please either ensure you are familiar with this requirement in advance, or reach out to us if you are unsure. **

Summary:
A functional device with very minor callouts regarding the appearance.

Product Condition (Appearance):
Front Face : A few tiny marks. Barely noticeable.
Sides : A few tiny marks. Barely noticeable.
Rear Face : A few tiny chips along one edge. A feint scratch.
Internal Battery Compartment : No callouts.
No noticable dents or signs of crushing.
All external facing screws present and tightened.

Product Condition (Functionality):
The device is functional. No callouts.
See test results and photographs for detail.

Player / Recorder Unit:
Sony MZ-E77

Power Via Rechargeable Gumstick Battery : OK *** Rechargeable gumstick battery is not included in the sale ***
Power Via External AA Battery Case : OK *** External AA battery case is not included in the sale ***

Audio Playback : Listened to over two hours of audio without issues. Also no issues when placed in a backpack and tested while walking.
Audio Output Via Inline Remote Headphone Jack : OK

Volume Down : OK
Volume Up : OK
Stop : OK
Previous Track : OK
Play / Next Track : OK
AVLS : OK
Digital Sound Preset : OK
Hold : OK

Disc Insert : OK
Disc Eject : OK

Device Settings:
Confirmed that it's possible to select, configure, and set Digital SOUND PRESET options (confirmed using RM-MC33EL inline remote control).

Product Information:
Released in 2000, the Sony MZ-E77 is dedicated to disc playback, and does not have disc recording functionality. 
Due to its age it does not support MDLP.
It features a 'Digital SOUND PRESET' function that allows you to customize the sound quality to your liking (inline remote required). The treble and bass levels can be adjusted separately in 8 steps, enabling 64 different sound creations. Furthermore, you can store two sound preset settings and select them at any time.
It weighs 85 grams without a battery or disc installed. 
It has a 3.5 mm headphone jack for audio output.

Hopefully this information is clear and covers everything you need, but don't hesitate to reach out if you have any questions.