Walton has launched a three-in-one converter air conditioner with Bluetooth and air plasma technology. The company released the latest model of 1.5 ton AC under its Krystaline Preto series that can be converted to a 1 or 0.75 ton AC according to room size. Read: Nagad recognises winners of 'Aurjon O Bijoyullash' campaign Along with a remote controller, customers can also operate this energy-saving AC through a smartphone via Bluetooth. Walton Hi-Tech MD and CEO Golam Murshed unveiled the AC at a launching programme in Dhaka Sunday, said a media statement. Read 47 individuals, enterprises get Walton 'Branding Heroes Award'