Features: 1. New design in 2021, built-in imported high-precision sensor chip, the detection accuracy of 0.005% BAC is comparable to professional instruments, and the detection range of 0.00-0.19% BAC (0-1.9G/L) is also very wide. 2. The non-contact detector is safer, the product is designed with a gas receiving hole, Non-contact blowing detection. The blowing time of 4 seconds is very fast. It allows multiple people to use it without changing the additional mouthpiece. Save money and health 3. Built-in 140mAh rechargeable polymer battery, which can be used continuously for 300 times, which is very durable. And supports Type-C port charging. Charging ports for mobile phones/computers/headphones can be used universally, and a Type-C data cable is included in the package 4.3 precise and detailed alarm modes: 4 seconds Working current: 250MA (MAX) Standby current: 20UA Use times: 300 consecutive wine tests Product List: 1*Alcohol detector host 1*Type-C charging cable 1*Instruction manual 1*storage bag