Description: The validity period is up to 10 years, and the electricity is locked. Lithium batteries can provide a stable voltage and reduce the discharge rate. No harmful substances such as mercury, environmental protection and pollution. The self -discharge rate and high energy density, effectively prevent unstable current from harming the electrical appliances. High and low temperature, stable, wide range of applications. For toys, calculators, laser pens, computer motherboards, electronic dictionaries, watches, electronic scales, pacemakers, electronic hearing aids, counter, clocks, watches, game machines, digital cameras, cameras, PDA, MP3 player, remote control, remote control Instrument, electronic instrument, recorder, blood glucose meter, cholesterol detector, LED light, etc. Specifications: Product Name: Battery Type: polymer lithium battery Package Included:5x Battery Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 0.1-2cm measuring deviation due to manual measurement.