Worked so well for my work, I ordered a second one for my wife to replace the Jabra HFK. Haven’t actually tried using it with 2 phones yet, so can’t comment on that aspect. Solar charging works as expected, haven’t had to charge it since the initial charge via the USB.[keyword]solar cells[/keyword][babs_template]solar+cells, 2, , 41979, All, 0, 1344, [/babs_template]