A complete 200-person silent disco system built on the W Audio SDPRO platform: 200 3-channel wireless headphones with RGB channel indication, three SDPROTX UHF transmitters for three simultaneous audio streams, and 4 SDPROMC 20-way chargers (80 charge ways). A ready-to-run package for event hire companies, venues, schools and activity providers – with the full three channels in use, guests choose between three DJs or music streams.
CAPACITY
200 users
expandable, no receiver limit
AUDIO STREAMS
3 included
3-channel system
BATTERY LIFE
8-10 hours
per headphone
RF BAND
863-865MHz
licence-free CH70
Licence-free UK operation
The whole system runs on 863-865MHz within Channel 70, licence-exempt in the UK – no Ofcom licence needed for events of any size. Transmitters reach up to 200m in low power mode and 400m+ in high power mode, and there is no limit to how many headphones each transmitter serves.
What’s in the package
Everything needed to run a 200-person event:
200 x SDPRO headphones3 x SDPROTX transmitters4 x SDPROMC 20-way chargers20 x 4-way charge looms3 x 12V PSUs
Grow the system
The SDPRO platform scales with your events:
All 3 channels included – system maximumUnlimited extra headphonesBluetooth beltpack transmitter available
Features
✓200 3-channel headphones with RGB LED channel indication
✓Three UHF transmitters running three simultaneous audio streams
✓Guests switch streams on the headphone; LEDs show the active channel
✓80 simultaneous charge ways via 4 x 20-way chargers
✓8-10 hour headphone battery life, 3 hour full charge
✓Stereo FM-modulated UHF transmission, unaffected by other RF in the room
✓Transmitters supplied in padded carry cases with PSUs
✓Custom logo branding on headphones available on request
Note
The 4 20-way chargers charge 80 headphones at a time – a full 200-headphone fleet charges in rotation (around 3 hours per batch of 80). Hire operations running back-to-back events may want additional SDPROMC chargers.
Specifications
| System | UHF RF, FM modulated, stereo, 3-channel |
| RF frequency | 863-865MHz (CH70, licence-free UK) |
| Simultaneous streams | 3 (system maximum) |
| Transmitter range | Up to 200m (low power) / 400m+ (high power) |
| Headphone battery life | 8-10 hours (500mAh lithium-polymer, 3 hour charge) |
| Charging capacity | 80 ways (4 x 20-way chargers, 5V 5A each) |
| Headphone audio | SNR >75dB, THD <1%, 30Hz-20kHz |
| Warranty | 1 year |
