DMC 595 MICROPHONE/SPEAKER
Merry Electronics (USA) Co., Ltd.: Hand-held. Omnidirectional. Water- and shock-resistant. Electret microphone with 2.2 ohms impedance, bandwidth between 50 Hz and five KHz. Dynamic speaker with eight or 16 ohms impedance, and frequency response between 600 Hz and five KHz. (800) 227-5206.