【Brand】 This is an acoustic pickup made by TEISCO. 【Functionality】 Volume and tone adjustments are possible. 【Condition】 I confirmed conductivity and operation about a year ago, and both volume and tone worked fine. However, I haven't used it recently, so there might be some crackling. The TEISCO logo is printed on it, but the "T" is missing. The logo is also faded overall. The spring on the back for attaching to the guitar, the feel of the volume/tone adjustment arm, and the tightness of the screws are all in good condition for use. This is a very old item, so I hope those who understand this will consider purchasing it. ※ I'm lowering the price to declutter, but if it doesn't sell by the end of October, I plan to remove it and sell it to another buyer.