This is a NOS Nokia Bluetooth Headset model BH-200 . I have never tried to open the box, so I assume it is a factory sealed box. Sold as is. I have no idea how these work. It has the following features:
- Latest Bluetooth technology provides better audio quality, lower power consumption, and a more reliable connection
- Nokia charger (included connects easily and ensures up to 5 hours 30 minutes of talk time
- Easy-to-use button for power on/off, answer/end, redial, call transfer, volume control and mute
- Lightweight headset weight only 0.49 ounce
- Soft ear hook fits easily over either ear for maximum comfort
- Conveniently switches audio between the handset and hands free mode
- Red and green LEDs show connection, call and battery status
- Unidirectional microphone for great sound all the time
- Package includes a Nokia charger, user guide, and Nokia warranty card.
Thanks for looking...