The black Shure AD2/K11B is a digital handheld wireless microphone transmitter compatible with Axient Digital series receivers. The AD2/K11B comes equipped with a KSM11B condenser capsule featuring a cardioid polar pattern with consistent off-axis rejection that focuses audio capture on the talent and picks up less background noise. The capsule offers an aluminum and steel grille that protects the mic and provides a 3-layer pop filter to help reduce breath and plosive noises. The built-in shockmount helps reduce handling noise during live performance for clearer vocals. The deep cardioid pattern offers solid gain before feedback, with minimal off-axis coloration, for a warm, full sound.
Specifications:
| Wireless Technology | Digital UHF |
| RF Frequency Band | 417 to 616 MHz |
| Max Operating Range | 328.1' / 100 m (Line of Sight) |
| Latency | 2 to 2.9 ms (Selectable) |
| Encryption | AES 256 |
| Built-In Recorder | No |
| Timecode Support | No |
| Mobile App Compatible | Yes (Android & iOS) — ShurePlus Channels (Adjust Settings, Remote Control, Setup) |
| Included Transmitters | 1x Handheld |
| RF Output Power | 10 / 2 / 35 mW |
| Antenna | Internal Single-Band Helical |
| Input Level | Microphone |
| Audio I/O | No |
| USB I/O | No |
| Muting | Mute Switch |
| Gain Range | -12 to +21 dB (3 dB Steps) |
| Auto-Level/Gain | No |
| Sync Method | IR |
| Display | Backlit LCD |
| Type | 1x Handheld with Interchangeable Capsule (KSM11 Included) |
| Polar Pattern | Cardioid |
| Frequency Response | 50 Hz to 20 kHz |
| Maximum SPL | 151 dB |
| Sensitivity | -46.5 dBV/Pa (at 1 kHz) |
| Color | Black |
| Transmitter Battery Type | 2x AA (Included) or 1x Shure SB900A - 750 mAh (Not Included) |
| Battery Life | 8 Hours (Alkaline), 9 Hours (Lithium Shure SB900A) |
| AC/DC Power Adapter | No |
| Environmental Resistance | No |
| Housing | Aluminum |
| Dimensions | 2 x 10.1" / 51 x 256 mm |
| Weight | 12 oz / 340 g (without Batteries) |