LANDLINE TELEPHONE Big buttons - 30dB
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Product Description: GEEMARC CLEARSOUND - CL11 - Buzzer Amplifier Product Type: Ringtone Amplifier Loud ringer (up to 95dB) Volume Control: High/Low Ring indicator: Ring indicator light Works without battery: Yes Compatibility: all corded phones Dimensions (LxWxH): 6cm x 3cm x8cm