Shure SVX288PG58 Dual Wireless Handheld Microphone Overview SVX Wireless Systems deliver the quality of Shure wireless performance for virtually any application. From vocal performance to fitness instruction, presentations to karaoke, SVX Wireless will provide years of reliable use. No other wireless system combines the same level of quality and ease of setup in a single package. Great audio response Includes Receiver, and 2x PG58 Handheld Microphones Up to 10 hours battery life (handheld) Trusted world wide by industry professionals Great for speeches, vocalists, performers, and presenters. Run up to 4 compatible systems simultaneously. Durable Construction. Up to 75m (LOS) operating Range Click here for a comprehensive frequency guide of your area Spec. Product Type Dual Wireless: Handheld Microphone Transmission Frequency: (J9) 558 570MHz Capsule Type: PG58 Frequency Response: 50Hz 15kHz Batteries: 2 x AA Alkaline(each microphone) Battery Life: Up to 10Hrs (battery dependent) Power Supply (receiver): 12 to 18 V DC @ 220 mA Dimensions: (Handheld) 254 x 51mm (Receiver) 32 x 168 x 102.5mm Weight: (Handheld) 270g (without batteries) (Receiver) 245g