The TR-P100E is a single button; water resistant pendant is our smallest, lightest, and most versatile pendant. Weighing less than 1.4oz, it comes with a neck cord and belt clip and can be easily converted by the end user. With the single-button, one-second press and hold activation, and a compact design, it is ideal for assisted living installations. It features a fully supervised radio link to help ensure reliability. Wristband also available. Operation: When used with Cornell System, this wireless device provides immediate emergency call assistance. Engineering Specifications: The contractor shall furnish and provide the CORNELL TR-P100E Wireless Mobile Transmitter as indicated on the plans. Mobile Transmitters shall be programmed to AURA 2.0 following specifications. Mobile transmitter shall be provided with neck cord and belt clip. Technical Information: Dimensions: 2.2 x 1.9 x 0.72 Power: 3.0V Lithium Battery Replacement: 3.0 volt Renata CR2450N lithium coin cell battery Battery Life: Up to 1-2 years Operating Environment: 50-120°F Indoor Non-condensing