uxcell 16pcs 27mm External Magnetic Speaker Loudspeaker 8 Ohm 0.25W Product Name : Magnet Speaker;Power : 0.25W Resistance : 8 Ohm;Type : ExternalMagnetic Shape : Round;MagnetDiameter : 15mm / 0.6" Size : 27 x 9mm / 1.1" x 0.35" (D*T);Material : Metal, Plastic Weight : 114g;Package Content : 16pcs x Magnet Speaker