I treated myself to some new hair clippers recently; Wahl, wireless clippers. State of the art. A thing of beauty. My previous ones, a fine pair of electric, wired clippers, had held me in good stead for many years, but I am a sucker for tech and gadgets, and thought, when purchasing them, how wireless would be easier, simpler for my barber and also, with the promise of less noise — almost silent. No wires to navigate or get tangled in — good to go. And the…