Amazon's reference price: 2,450 yen. USB rechargeable type. Convenient for carrying around. This is a used item, used a few times. There are no instructions or warranty. The included accessories are only the "main unit" and the "USB cable". It has been disinfected with alcohol, but please refrain from purchasing if you are concerned about hygiene, as it is a used item. Operation has been confirmed. It will be shipped in simple packaging.