The SpeechLine Digital Wireless SL Handheld 865 DW-4-US from Sennheiser is a wireless handheld transmitter with a supercardioid MME 865 microphone capsule. It can be used when paired with a receiver (sold separately) to capture speech in presentations or lectures for meetings, conferences, and more.
The transmitter requires no settings to be adjusted. The automatic frequency and interference management allows convenient and reliable operation. The LC display provides the link name, battery status, and reception quality.
Furthermore, there is a mute-slider switch ergonomically positioned on the transmitter that makes the use of the microphone very convenient. The SL Handheld microphone transmitter comes with a rechargeable accupack with up to 15 hours of operating time. A carry pouch is also included.
Finally, Sennheiser Control Cockpit Software (download) offers easy handling, control, and maintenance for the Digital Wireless System. It provides a global overview of all network-enabled devices, shows all status information, and makes setting adjustments very easy.
Sennheiser SL Handheld DW Specs
RF Output Power | Adaptive, up to 250 mW (country-specific) |
Frequency Response | 50 Hz to 20 kHz |
Total Harmonic Distortion (THD) | Typical 0.1% |
Input Sensitivity | Automatic sensitivity adjustment |
Sampling Rate | 24-bit/48 kHz |
Signal to Noise Ratio | > 90 dBA |
Encryption | AES 256 |
Frequency Range | USA: 1,920 to 1,930 MHz |
Modulation | GFSK with back channel |
Transmission Method | TDMA, space diversity |
Latency | 19 ms |
Power Supply | Accupack: BA10 (Li-Ion, 3.7 V) Batteries: 2 x AA size battery (1.5 V) |
Operating Time | Accupack: Typical 15 hours Batteries: Typical 10 hours |
Display | LCD |
Mute Switch | Yes |
Dimensions | 9.02 x 1.99" (272.4 x 50.5 mm) (w/ capsule) |
Weight | 9.2 oz (262 g) with capsule (w/o Accupack) |
Type | Pre-polarized condenser microphone |
Sensitivity | 1.6 mV/Pa |
Pickup Pattern | Supercardioid |
Maximum SPL | 152 dB SPL |
Package Weight | 1.2 lb |
Box Dimensions (LxWxH) | 14.15 x 3.35 x 2.95" |