&lt;p&gt;&amp;bull; Electret microphone cartridge&lt;br /&gt;&amp;bull; A-weighting&lt;br /&gt;&amp;bull; Functions max hold and min. hold&lt;br /&gt;&amp;bull; Backlit LCD switches off automatically&lt;br /&gt;&amp;bull; 6.3 mm (?) thread&lt;br /&gt;&amp;bull; RELATED PRODUCTS: (1)&lt;br /&gt;&amp;bull; LR-61 Alkaline Battery&lt;br /&gt;&amp;bull; 2.64&lt;br /&gt;&lt;/p&gt;