For wireless microphones, and really anything that requires serious staying power from batteries, let ProCell be your first choice. Broadcasters, Stage Managers and Theatres all around the world depend on the battery that gives them maximum output for as long (and consistently) as possible. Factory Sound keeps huge volumes of Procell batteries in stock, so you always get great bulk-buy pricing, all year round. PROCELL is made by Duracell - it's their professional user model, high on voltage...low on packaging.
Duracell PROCELL-AA The pro AA battery with serious staying power RRP: $1.55Duracell PROCELL-9V The pro 9V battery with serious staying power RRP: $5.80Duracell PROCELL-AA-SLV4 Sleeve of 4 Procell AA Batteries RRP: $5.50Duracell PROCELL-AAA-BOX24 Box of 24 Procell AAA Batteries RRP: $32.20Duracell PROCELL-AAA-CTN72 Carton of 72 Procell AAA Batteries RRP: $84.00