Sync 2 Pro
EN
Operation
Switching on the transmitters and receiver
1. Method 1: When you remove the transmitters or the receiver from the
charging case, the devices are switched on automatically.
2. Method 2: Hold down the main switch for three seconds to switch on
the transmitters or the receiver.
Switching off the transmitters and receiver
1. Method 1: When you place the transmitters or the receiver in the
charging slots of the charging case, the display shows
“charging“. The devices are turned off automatically when
they are fully charged.
2. Method 2: Hold down the main switch for three seconds to switch off
the transmitters or the receiver.
Pairing the transmitters and receiver
1. Method 1: When you remove the transmitters or the receiver from the
charging case, the devices connect to each other automati-
cally.
2. Method 2: Hold down the main switches of the transmitters and the receiv-
er for three seconds to switch on the transmitters or the receiver.
Hold down the main switches of the devices simultaneously for
eight seconds until the display shows the connection state.
After successful pairing, the display of the transmitter
shows .
Adjusting the volume
1. Press the main switches of the transmitters to mute or unmute the built-in
microphone.
2. Repeatedly press on the transmitters to adjust the transmitter volume in
six stages (0, 3, 6, 9, 12, 15).
3. Repeatedly press A or B on the receiver to adjust the volume of the
received audio signals from transmitter A or transmitter B.
Adjusting the transmitter noise reduction
1. Repeatedly press on the transmitters to switch between noise reduction
modes.
HL
Noise reduction
high
Noise reduction
low
Noise reduction
deactivated
The transmitter that was paired with the receiver rst is de-
ned as transmitter A, the second transmitter as transmitter B.
Technical specications
Transmitter
Number of systems that can be
operated in parallel: 2
Charging connection: USB-C (5 V 1 A), charging contacts
Audio input: 3.5-mm jack socket,
unbalanced
Audio frequency response: 50 Hz...20 kHz
Audio sampling rate: 48 kHz, 16 bit
Radio frequency range: 2400 MHz...2483.5 MHz
Dynamic range: > 62 dB
Signal-to-noise ratio: > 85 dB
Total harmonic distortion: < 1%
Carrier frequency range: 2.4 G, 2400 MHz...2483.5 MHz
Max. transmission power: 10 W
Latency: 20 ms
Range: 200 m (with clear eld of vision)
50 m (without clear eld of vision)
Modulation: digital
Battery: type Lithium-ion
Capacity 400 mAh
Operating time 2 h
Charging time 8 h
Dimensions (W × H × D): 42 mm × 52 mm × 17 mm
Weight: 39 g
Temperature range: 0 °C...40 °C
Relative humidity 20%...80% (non-condensing)
Receiver
Number of systems that can be
operated in parallel: 2
Charging connection: USB-C (5 V 1 A), charging contacts
Audio output: recording 3.5-mm jack socket
headphones 3.5-mm jack socket
Audio channels: 2
Audio frequency response: 50 Hz...20 kHz
Audio sampling rate: 48 kHz, 16 bit
Radio frequency range: 2400 MHz...2483.5 MHz
Dynamic range: > 62 dB
Signal-to-noise ratio: > 85 dB
Total harmonic distortion: < 1%
Carrier frequency range: 2.4 G, 2400 MHz...2483.5 MHz
Max. transmission power: 10 W
Latency: 20 ms
Range: 200 m (with clear eld of vision)
50 m (without clear eld of vision)
Max. input level 120 db @ 1 kHz
Modulation: digital
Battery: type Lithium-ion
Capacity 400 mAh
Operating time 2 h
Charging time 8 h
Dimensions (W × H × D): 42 mm × 52 mm × 17 mm
Weight: 39 g
Temperature range: 0 °C...40 °C
Relative humidity 20%...80% (non-condensing)
Microphones
Sound eld: mono
Polar pattern: omnidirectional
Frequency range: 50 Hz...20 kHz
Sensitivity @1 kHz (dBV/Pa): -35 dB
Sound pressure level (dB SPL @ 1% THD, 1 kHz) 120 dB
Temperature range: 0 °C...40 °C
Relative humidity 20%...80% (non-condensing)
Charging case
Charging connection: USB-C (5 V 1 A)
Battery: type Lithium-ion
Capacity 3,400 mAh
Charging time 3.5 h
Dimensions (W × H × D): 170 mm × 50 mm × 80 mm
Weight: 227 g
Temperature range: 0 °C...40 °C
Relative humidity 20%...80% (non-condensing)
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