Audio-Technica"s omnidirectional ATR35s lavalier is engineered for intelligible, accurate voice reproduction. This high-quality condenser is ideal for video use. Its low-profile design assures minimum visibility. Features: High-quality condenser in a miniature lavalier microphone Ideal for aerobics/dance/sports instructorsGreat for video use, this "newscaster-style" microphone is practically invisible Integrated 20" cable terminated with a 3.5 mm mini-plug for use with most cameras and home recording systems On/off switch for convenient operation Includes tie clip, battery, foam windscreen, and 1/4 inches (6.35 mm) adapter Specifications: ELEMENT Condenser POLAR PATTERN Omnidirectional FREQUENCY RESPONSE 50 - 18,000 Hz OPEN CIRCUIT SENSITIVITY -54 dBm +/- 3 dB, 1 kHz at 1 Pa IMPEDANCE 1000 ohms +/- 30 percent BATTERY TYPE LR44 WEIGHT 0.2 oz (6 g) CABLE 20" (6.0 m)