NIPLUX NECK PREMS (NIPLUX Neck Prems) Brand: NIPLUX Product Name: NECK PREMS (Neck Prems) *Used only once. Almost new, but please understand that it has been stored for a long time before purchasing. Rated Voltage: DC 5V 2A Power Consumption: Approximately 10W (when charging) Power Supply: AC adapter Set Contents: Main unit x 1 Remote control x 1 (*New battery) Main unit dimensions: Approximately 267 x 261 x 105mm Weight: Main unit: Approximately 830g / Remote control: Approximately 20g Battery Capacity: 2200mAh Operating Environment: Temperature 5°C-40°C / Relative Humidity ≤80%RH Type: EMS Thank you for your understanding regarding used items.