Shure QLXD2/SM58 = G51

Cardioid dynamic handheld digital transmitter with SM 58 capsule for the QLX-D series. G51 band (470 - 534 MHz).
Encrypted digital transmission (AES-256). Selectable transmit power 1-10 mW. Up to 60 systems per
band, automatic channel search and IR receiver synchronization. Maximum range
100 m. Response: 20-20 kHz. Dynamic range: 120 dB. Gain adjustable from 0 - 21 dB (3 dB steps), maximum SPL 145 dB.
Rugged aluminum chassis, integrated helical antenna. IR port for receiver synchronization,
backlit LCD display for settings and status monitoring. Powered by two AA batteries
or a Shure SB900 rechargeable lithium battery, battery life up to 10 hours with rechargeable batteries and 9 hours with AA batteries.
External rear charging contacts. Dimensions: length 256 mm, diameter 51 mm. Weight: 347 g (without batteries). Color: Black.

Featuring transparent digital audio with 24-bit quantization quality and incredibly efficient use of the RF spectrum, the QLXD2 handheld is ideal for voice applications in presentation spaces, music venues, and houses of worship. Simple to use, the QLXD2 syncs to a receiver via infrared at the touch of a button and maintains a clear, uninterrupted signal throughout its 100 m (330 ft) transmission range. The all-metal construction ensures durability, while a wide selection of compatible microphone capsules delivers legendary Shure sound.

- Linear frequency response from 20 Hz to 20 kHz (actual frequency response varies by microphone capsule)
- Interchangeable Shure microphone capsules, including the legendary SM58®
- Uses 256-bit AES encryption for applications requiring secure transmission
- Over 120 dB dynamic range - no transmitter gain adjustment required
- 1 mW or 10 mW RF transmit power, selectable from the menu
- Up to 9 hours of continuous operation with two AA alkaline batteries
- The Shure SB900 rechargeable lithium-ion battery provides over 10 hours of battery life and offers precise monitoring in hours and minutes.
- Incorporates external charging contacts
- Backlit LCD display with easy-to-navigate menus and simple-to-use controls
- Different display modes show group/channel, frequency, or battery life.
- 100 m (330 ft) line-of-sight transmission range
- Rugged metal construction
- Lockable frequency and power controls