I would say this is in very-good to excellent condition except for the hairline crack in the top left of the box, see pics. The battery compartment is like-new and it works great! No charger included but is the easily found, the very common Boss PSA-style adapter.

The Boss DR-670 is a compact, feature-packed drum machine with the punchy, dependable sound and hands-on workflow Boss is known for. It offers a wide range of realistic acoustic kits, electronic drums, percussion sounds and bass tones, making it a great tool for songwriting, practice, home recording or live performance.

The velocity-sensitive pads feel responsive and make it easy to tap in beats naturally, while the built-in patterns provide instant inspiration across rock, pop, funk, jazz, dance and many other styles. You can also create and save your own patterns, program fills and variations, and build complete arrangements directly from the unit.

One of the DR-670’s most useful features is its built-in bass section, allowing you to program both drum and bass parts from a single compact box. Add MIDI connectivity, footswitch control and battery operation, and it becomes an especially practical choice for musicians who want a portable rhythm workstation without relying on a computer.

The DR-670 is easy enough to get started with quickly, but deep enough to become a serious songwriting and production tool. A solid choice for guitarists, keyboard players, producers and anyone looking for a versatile, great-sounding hardware drum machine with classic Boss reliability.

You'll need batteries or a charger. Very easy to replace. The Boss DR-670 uses the common Boss PSA-style adapter:

• 9V DC
• Center-negative polarity
• 200 mA minimum
• Standard Boss pedal-size barrel plug, typically 5.5 × 2.1 mm

A modern Boss PSA-120S is the safest official choice.