Erika’s Ongoing Innovations

Innovation has been a key driver of Convergent Design from day-one. Over time our Odyssey/Apollo video recorders were enhanced 17 times via major firmware updates. These free updates included many new features, all of which improved the value and functionality of our recorder.

We have similar plans for Erika. Already Erika leads the industry with such innovative features as dynamic switching and 25-hour battery life. Our PC/Mac app provides extensive control and status info, not found in competitive products.

Look for many new firmware updates, many of which will not require any hardware changes or additional costs.

Erika Wireless USB Mic Specifications

FREQUENCY/CHANNEL SELECTION Not required; auto-adaptive frequency hopping
WIRELESS COEXISTENCE Designed to coexist with WIFI and Bluetooth
WIRELESS RANGE (LINE OF SIGHT) 20 – 300’ (6 – 90 m), user-configurable
TIME TO “PAIR” Typically under 1 second, fully automatic
AUDIO SAMPLING 22.05 kHz (voice) or 44.1 kHz (music), 16-bit
AUDIO FREQUENCY RANGE 50 Hz to 20 kHz, depending on the sampling rate
VOLUME CONTROL +/- 20 dB, using “Sound settings” in your OS
ENCRYPTION By design employs proprietary transmission
FIRMWARE UPDATES Over USB, using the Erika app

Wireless Mic

Form factor All-in-one: mic + transmitter + battery
Dual-Use Wearable or conference table mic
Attachment Neodymium magnet. May be incompatible with body-implant devices, such as pacemakers
Mic polar pattern Omnidirectional
Mic technology Low-noise digital MEMS
Mic dynamic range 91 dB
External mic support None (built-in high-quality mic)
Battery type Built-in Lithium-Polymer
Battery capacity 24 hours, typical, 12 hours at highest range setting
On/Off Control Orientation based, face-down to power-down
Charge time 2.5 hours (overcharge protected)
Charge Port USB-C (a USB-C to USB-A cable is included)
Waterproof No, but can be sanitized with a disinfectant wipe
Dimensions 1.5 x 0.8 x 0.4” (38 x 21 x 10 mm)
Weight 0.5 oz (16 g), including magnet

Wireless USB Receiver

Transmission type Proprietary 2.4 GHz
Audio output USB Audio (Type C connector)
Form factor Self-contained, no battery, USB powered
Dimensions 1.5 x 0.8 x 0.3” (38 x 21 x 8 mm)
Weight 0.2 oz (5 g)
Receiver Stand Plastic, 3 x 3 x 2” (76 x 76 x 50 mm)
Firmware Updates Over USB, using the Erika app


PC Windows 10.x
Mac OS 10.x
Chromebook Version 86 (or later)
USB Hub USB 2.x hub only, USB 3.x hubs are not recommended due to 2.4 GHz interference
DSLR/mirrorless cameras No (USB Output Only)
Bluetooth devices No
Cellphones See owner’s manual

Country of Origin

Design USA
Manufacture USA




90 days, extended to 1 year with registration