SX-707 Easy Comfort wireless headphones: light and compact for fitness, yoga and silent walks
Headphones for people on the move: compact, lightweight and with flat, powerful sound despite their small size.
Three channels with color LEDs, for fitness classes, CrossFit, yoga, meditation and group walks.
3Channelsblue, red and green LEDs
CompactLightweightbuilt for movement
7–9 hBattery liferechargeable lithium battery
FitnessYoga · WalkCrossFit, workouts, meditation
Small, light, powerful
The SX-707 Easy Comfort speakers deliver flat, stable and powerful sound: the trainer’s voice comes through clearly and the music keeps the beat.
- Compact: minimal footprint, easy to store and transport.
- Built for movement: increasingly popular for CrossFit, workouts and fitness in general.
- Color LED indicators: show which channel you’re tuned to.
- Button controls: easy to use even mid-workout.
Three buttons, zero hassle
01
Power on
Press the outer white button and the gray button on the edge of the right ear cup together.
02
Pick a channel
The round button switches between channels: blue, red or green LED.
03
Adjust the volume
Side button on the right ear cup: press and hold to lower the volume, press repeatedly to raise it.
See the SX-707 in one minute
The video tutorial covers power on, channel selection and volume control. The full transcript is below.
SX-707 Easy Comfort spec sheet
| Parameter | Value |
|---|---|
| Model | Silentsystem SX-707 Easy Comfort |
| Type | Compact RF wireless headphones |
| Technology | UHF / RF system, FM modulation |
| Channels | 3, with blue, red and green LEDs |
| Frequency bands | 3-channel system: 863–865 MHz (details) |
| S/N ratio | > 75 dB |
| Distortion (THD) | < 1% |
| Frequency response | 20 – 20,000 Hz |
| Channel separation | > 30 dB |
| Lights | RGB LED indicators |
| Controls | Power, channel and volume buttons |
| Battery | Built-in rechargeable lithium |
| Battery life | About 7 – 9 hours |
They run on radio frequency: no internet or app needed.
Recommended uses
Compatible transmitters
Made for people who never stand still
- Compact and lightweight: ideal for sports and constant movement.
- 3 channels: multiple instructors or programs in the same space.
- Color LEDs: the trainer can instantly see who is on which channel.
- 7–9 hours of battery life: several classes or a full event on one charge.
- Portable transmitters: with the TX-300 and TX-330, the trainer moves with the group.
SX-707 FAQ
Other Silentsystem headphones
SX-809
Super Power Bass, RGB LEDs and up to 45 channels for silent disco and music events.
SX-858
10 channels, 190 grams and Double Funktion® for multichannel events.
SX-553
5 channels, large LEDs you can switch off and simple controls.
All headphones
Compare channels, battery life and recommended use across every model.
