Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security. Y ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR The Blue Angel is the ecolabel of the federal government of Germany since 1978. The Blue Angel sets high standards for environmentally friendly product design and has proven itself over the past 40 years as a reliable guide for a more sustainable consumption. Blue Angel The Electronic Product Environmental Assessment Tool (EPEAT) is a global ecolabel for the IT sector. The EPEAT program provides independent verification of manufacturers’ claims and the EPEAT online Registry lists sustainable products from a broader range of manufacturers than any comparable ecolabel. National governments, including the United States, and thousands of private and public institutional purchasers around the world use EPEAT as part of their sustainable procurement decisions. EPEAT helps purchasers, manufacturers, resellers, and others buy and sell environmentally preferable electronic products. EPEAT-registered products must meet environmental performance criteria that address: materials selection, supply chain greenhouse gas emissions reduction, design for circularity and product longevity, energy conservation, end-of-life management and corporate performance. Bronze-rated products meet all of the required criteria in their category. Silver-rated products meet all of the required criteria and at least 50% of the optional criteria, while Gold-rated products meet all of the required criteria and at least 75% of the optional criteria. EPEAT Silver 2 paper trays 2 Laser technology Laser HP Color LaserJet Enterprise M751dn, Laser, Colour, 1200 x 1200 DPI, A3, 41 ppm, Duplex printing HP Color LaserJet Enterprise M751dn. Print technology: Laser, Colour. Number of print cartridges: 4, Maximum duty cycle: 150000 pages per month. Maximum resolution: 1200 x 1200 DPI. Maximum ISO A-series paper size: A3. Print speed (black, normal quality, A4/US Letter): 41 ppm, Duplex printing. Display: LCD. Wi-Fi. Product colour: White https://www.betterbuys.com/office-equipment/reviews/hp-color-laserjet-enterprise-m751-series/ HP recently expanded its color single-function printer lineup with the introduction of the Color LaserJet Enterprise M751 Printer series. There are two printers in this series: the M751n and M751dn. The M751n is the base model, while the M751dn adds on st... Flexible paper handling, strong security features, high-yield replacement toner cartridges Wireless connectivity is only optional; no finishing options available