WA Universal Desk Charger Walkers Specialty Accessori Colors Beige Saturation Sound Pressure Instrument Accessories Colors Beige Saturation Sound Pressure Level (SSPL) 129dB Frequency Range 200~5000 Hz Total Harmonic Wave Distortion ≤10># td### Reference Test Gain 56±5dB Input noise ≤20+3dB Sound amplification 80 Press the “M” button with a "short" press 5 V well rechargeable NiCad handles Lithium Ion Handle and PocketScope handles (only PocketScope handles require an adapter) * Colored LEDs indicate power to the unit and that handles are charging * Advanced circuitry for constant automatic safe charging and optimum lamp performance and life * Compact for convenience and mobility * Optional wall mount kit for permanently mounting to wall or cabinet * Optional specula tray conveniently stores swabs otoscope specula and curettes * Accepts 3