Specifications: Keychain, High Lumens, Magnetic, Rechargeable, 10 hours, Zinc Alloy, lithium_polymer, 2.14 L x 0.85 W x 0.46 H inches, 38 grams, waterproof, 2 year manufacturer., VTIGER, K1 (Black)
Specifications: 25 hours, Stainless Steel, lithium_polymer, 1, 0.82 L x 1.22 W x 5.19 H inches, 0.32 pounds, water_resistant, 2 year manufacturer., Minsk, DT007
Features: Accurate & Fast reading - can be measured accurately in about 10 seconds or less. Large LED display & Portable - Small size and the attached lanyard makes it easy to carry. Low Power Consumption - The finger oximeter needs 2 AAA batteries,can be operated continuously for more than 30 hours. Also, the oximeter will power off automatically You Will Get - 1* Pulse Oximeter, 1* User Manual and 1 year warranty.