NEW DESIGN AND METAL FINISHES: New contemporary designs in aluminum material and powder-coated finishes prevent damage and wear. The metallic look is an elegant gift for a friend. High precision and sensitivity: this alcohol tester uses High precision and sensitive semiconductor alcohol sensor produces accurate results. contactless and Hygiene: No need to change the mouthpiece. Save time and money. More hygienic, can accommodate multiple peopleIt can be used without changing the extra mouthpiece. Safe and Rechargeable: Using Polymers batteries, it is safer to store them in the vehicle. Portable alcohol testers are designed toType C port. COMPACT AND PORTABLE: This professional alcohol tester is small and portable, making it easy to carry Keep it in a purse or pocket. A must-have for weddings, parties, banquets or other occasionsSocialize to keep drinking and driving safe.