Sennheiser SpeechLine SL Headmic DW-3 (1.9 GHz) Wireless Headset Set with Omnidirectional Headmic

• Automatic Frequency Management: No frequency planning or manual fine tuning required due to Auto Frequency Management.
• Automatic Audio Level Management: Adjusts gain levels and sensitivity fully automatically and always guarantees superior audio clarity.
• Remote App: Easy monitoring and operation via the Wireless System Remote App for iOS or Android.
• Optimum Speech Intelligibility: Audio presets for male/female voices, and preconfigured sound profiles for dedicated settings.
• Automatic Interference Management: Actively avoids wireless transmission disturbances by quickly switching to a free frequency.
• Convenient Recharging: Powerful Li-Ion technology - Outstanding battery life up to 15 h.
• License-Free: License-free operation, no registration required.
• Future-Proof 1.9 GHz: A smart investment in a future-proof frequency range.
• Advanced 256-Bit AES Encryption: The strongest encryption algorithm for secure wireless transmission.
• Multichannel Operation: Up to 20 RF channels per range (dependant on local regulations).

General

• AF frequency response: 20 to 20,000 Hz
• Dynamic range: > 120 dB (A)
• THD (1 kHz): typ. 0.1 %
• Audio sampling: 24 bit/48 kHz
• Signal-to-noise ratio: > 90 dB (A)
• Encryption: AES 256
• Modulation: GFSK with back channel
• Transmission method: TDMA | Space diversity
• Latency: 19 ms

Temperature range - relative air humidity max. 95 %

• Operation: -10 °C to +55 °C
• Storage: -20 °C to +70 °C
• Temperature range is influenced by battery characteristics.

RF frequency ranges:

• EU: 1,880 to 1,900 MHz
• USA: 1,920 to 1,930 MHz
• Brazil: 1,910 to 1,920 MHz
• Taiwan: 1,880 to 1,895 MHz
• Japan: 1,893 to 1,906 MHz