Philips EXP2546/02. Signal-to-Noise Ratio (SNR): 85 dB, Output power: 2 x 4 mW RMS, Sound enhancement: Dynamic Bass Boost. Display: LCD. Volume control: digital. Headphone connectivity: 3.5 mm. Battery type: AA, LR6, UM3 This is an auto-generated long summary based on the first three features of the first five feature groups.