- Up to 300 meters of crystal clear digital wireless transmission
- Separate noise cancellation control with a 48kHz/24bit sample rate in the HD audio format
- Wide-range 20-20,000Hz frequency response delivers exceptional high-quality sound
- 8GB of built-in memory stores up to 15 hours of HD recording in each transmitter
- Transmitters have USB-C ports so that you can connect to a laptop or smartphone to read and/or copy your back-up recorded files
- 10 hours of operating time using the built-in rechargeable batteries (about 6 hours when the onboard backup recording is enabled). Additional run time (up to 65 hours additional hours) is available using battery boosters found here
- The transmitter can be rested on a table or desk or attached to your clothes with the included strong magnet or spring clip
- Rotating clasp-type furry windshield for recording outdoors
- Receiver has a 3.5mm headphone output – use to live-monitor your audio in real-time
- High-resolution OLED display – see vital information at a glance
- Selectable Mono (one channel) or Stereo (two channels). This allows you to record both microphones to one channel (mono) for single channel recording programs or both microphones to 2 different channels (stereo) for mixers and multi-channel programs
- 3.5mm TRS analog output, USB-C and iOS Lightning digital outputs for universal compatibility with mixers, USB audio adapters, cameras, smartphones and computers
- Charging case included – makes the kit easy to carry and charge the devices inside
This product is a portable 2.4GHz wireless microphone system. It features high-performance noise cancellation, which is available for improving the recording effect in a noisy environment. It also boasts a remarkable onboard recording which is available for storing your recording files in real-time. This system is perfect for live streaming, vlogging, mobile journalism, and more. What’s more, equipped with a low-cut filter, the wireless microphone can eliminate unwanted low-frequency noise (75Hz/150Hz or lower) in your recording.
Mixer features:
The SP-MIXER-4 is a small but versatile mini mixer, perfect for court reporting applications. Unlike other mixers supporting only standard microphones, this mixer allows you to simultaneously make use of 4 audio input for microphones of different kinds, including those with the common 3.5mm (1/8″) miniplugs. The mixer supplies power for all Sound Professionals microphones that have a 3.5mm plug.
NOTE: This is NOT a multichannel mixer – if you want to record multiple channels, look at this system instead.
Specifications :
| Gain | 45dBm |
| Current consumption | 300mA (max) |
| Power supply | USB 5V/1A Adaptor |
| Dimensions | 100 x 80 x 15 mm/3.9″ x 3.1″ x 0.6″ |
| Weight | 120 g / 4.2 oz (body) |
In the box:
- 5V/1A Adaptor x 1
- USB power cable x 1
- USB data cable x 1
- TRRS to TRS Adaptor (for headsets with 4 pole male plugs) x 1
- Owner’s Manual x 1







Sylvia M from CA – United States –
Sylvia M from CA – united states | 22 Jul 2023
Excellent product. I used it yesterday. Thank you for the tech support. Very knowledgeable.
Miah Parson (verified owner) –
Chris was excellent, very helpful. I work in the courtroom which is a pretty good size and literally can hear everything! Game changer worth every penny to know I have this