TRU COMPONENTS 3.39 inch 8.6 cm Mini speaker 3 W 8 Ω

Impedance (integer): 8 Ω; Max. frequency: 10000 Hz; Max. load (W): 5 W; Min. frequency: 450 Hz; RMS capacity: 3 W; Recess depth: 26 mm; Recess diameter: 86 mm; Sound pressure: 90 dB; Speaker features: Plastic diaphragm, Damp-proof, Transparent diaphragm; Speaker size (cm): 8.6 cm; Speaker size (inch): 3.39 inch

Price: £ 5.49 from Conrad Electronic