EQ-505R, piezo pickupPower: 9V Alkaline Battery, the battery is not including here.With this preamp, you spend less time tweaking controls and more time playing.Included rod-style piezo transducer pickup, attaches via small plug so it can be removed if .Can be fitted into your acoustic and cigar box guitars ,it is to electrify and amplify their sound.Colour: BlackMaterial: ABSPacking size: 15*10*5cmPackage Contents:1 * pickup1 * Pickup stick1 pack * mounting accessoriesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia