Geemarc Amplicall 10 Telephone ring amplifier - The AmpliCall 10 Telephone Ringer & Flasher from Geemarc alerts you to the ring of your telephone with an extra loud adjustable 95dB ringer and extremely bright LED camera flash strobe light. - Extra loud ringer (up to 95dB) with adjustable volume - Tone control (high/medium/low) - Camera flash ring indicator - Optional shaker - 4 alarm options: light+alarm/light+shaker/alarm+shaker/off - Wall and desk mountable - Can operate on the mains or on batteries - AMPLICALL10