 
 <prompt> How well OMTP chargers take perform? Based on di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Di cellular phone carrier group Open Mobile Terminal Platform (OMTP) for 2007 endorse micro-USB as di standard connector for data and power on top mobile devices. For 22 October 2009, di International Telecommunication Union (ITU) also announce say dem don accept micro-USB as di Universal Charging Solution for dia "energy-efficient one-charger-fits-all new mobile phone solution," and add say: "Based on di Micro-USB interface, UCS chargers also include a 4-star or higher efficiency rating—​​up to three times more energy-efficient than an unrated charger."``` 