Shure AD2/B87C-G57 Wireless Handheld Transmitter with BETA87C Mic

Features of the Shure AD2/B87C-G57 Wireless Handheld Transmitter with BETA87C Mic:

• For Axient Digital Systems
• Beta 87C Cardioid Condenser Mic
• Automatic Gain Adjustment
• 2/10/35mW RF Output Power
• Mute Mode, Backlit LCD
• Secure AES-256 Encryption
• Networked Intelligent Charging
• Interchangeable Capsule Design
• 9 Hours with SB900A Rechargeable Battery

Specifications:

Wireless Technology Digital UHF
RF Frequency Band 417 to 616 MHz
RF Bandwidth 146 MHz
Frequency Step Size 25 kHz
Max Operating Range 328.1′ / 100 m (Line of Sight)
Latency 2 to 2.9 ms (Selectable)
Encryption AES 256
Modulation Proprietary
Transmitter
Transmitter Type Handheld
RF Output Power 2 / 10 / 35 mW
Audio I/O None
Muting Mute Switch
Audio Input Level 145 dB
Gain Range -12 to +21 dB (3 dB Steps)
Sync Method IR
Antenna 1 x Internal Single-Band Helical (Handheld)
Power Requirements Battery
Battery Type 2 x AA (Included)
1 x Shure SB900A (Not Included, Replaceable)
Approx. Battery Life Med.:
8 Hours (Alkaline)
Med.:
9 Hours (Lithium Shure SB900A)
Display & Indicators 1 x LCD (Battery Status, Channel, Group, Signal Strength)
Housing Aluminum
Operating Temperature 0 to 122°F / -17 to 50°C
Storage Temperature -20 to 165°F / -28 to 73°C
Dimensions 2 x 10.1″ / 51 x 256 mm
Weight 12 oz / 340 g (without Batteries)
Microphone
Microphone Type Handheld Capsule
Sound Field Mono
Capsule Condenser
Polar Pattern Cardioid
Frequency Range 50 Hz to 20 kHz
Maximum SPL 139 dB SPL
Sensitivity -51 dBV/Pa at 1 kHz
Dynamic Range 117 dB