It's great that there is a pocket guide for midday use. The construction material is okay for its price. Be aware that it consumes one AA battery in half an hour with 45 minutes. However, it works, meaning it does the job it's intended for. Indeed, you can locate the points, and the initial feeling is unfamiliar. Don't be afraid if you feel pulses in the hand holding the device. It's completely normal. The hand holding completes the circuit for it to work. If it bothers you too much, change your grip to achieve the desired result. It doesn't come with contact gel, which you need to find somewhere in the market. I read somewhere that aloe might be a good choice, so some aloe gel might do the job, especially if you want to target points on the face. Essentially, it saves us from the pinch of electricity and does a better job. One thing I noticed is that the head with the ball has somewhat worn enamel, not drastically, but like very fine scratches. I hope it doesn't break further. Finally, for economy and ecology, immediately purchase the Energizer battery charger for AAA and AA types and invest in a set of rechargeable batteries; otherwise, you'll have to open a collection and recycling unit in your home in the first week.