This is a no-brand neck speaker. I don't remember when I bought it, but I purchased it 5-6 years ago and only used it once for testing before putting it away. Pairing, playback, and all buttons work without any problems. It charges with a Type-B cable. I haven't tried other neck speakers, but I don't think the sound quality is that great. The weight is 80g. There is no instruction manual. When you turn on the power button, it appears in the Bluetooth list on your TV or smartphone, so pairing was easy. It will be shipped via Nekopos or Yu-Packet Post.