Listen Technologies LK-1 ListenTALK Transceiver with Lanyard, Ear Speaker, and Battery
- Transceiver for 2-Way Communications
- For Communication Among 2 or More People
- Convenient Push-to-Talk Operation
- User Controls for Volume, Pairing & More
- Compatible with Smartphone Earbuds
- Includes Universal Ear Speaker
- Includes Lanyard
- Includes Rechargeable Li-ion Battery
The Listen Technologies LK-1 is a transceiver designed for two-way mobile communications. It utilizes Listen Technologies� proprietary encryption technology to ensure security, and provides easy-to-use, push-to-talk implementation in the field for simple coordination and communication among two or more collaborators in any scenario.
User controls such as volume up, volume down, talk, power/status, and pairing help you in tailoring the unit to your particular, moment-to-moment needs. Though the unit can be used with a Listen Technologies headset�or standard smartphone earbuds�the LK-1 comes with an LA-401 Universal Ear Speaker, as well as a lanyard (useful for on-the-go scenarios), and an LA-365 rechargeable lithium-ion battery.
In the Box
Listen Technologies LK-1 ListenTALK Transceiver with Lanyard, Ear Speaker, and Battery
Listen Technologies LK-1 specs
| Radio | |
|---|---|
| Operating Frequency | 1920 to 1930 MHz |
| Power | 4 mW, average |
| Typical Range | Indoor: 328" / 100 m, depending upon condition Outdoor: 656" / 200 m, depending upon conditions |
| Modulation | GFSK - FHSS, TDD/TDMA/DCA |
| Security | Subscription: 40-bit (pin free) Authentication: 32-bit Encryption: 64-bit |
| Headphone Output | |
|---|---|
| Impedance | 16 to 32 Ohms |
| Max Output Power | 67 mW, 16 Ohm load (threshold of clipping) |
| Features | Side-tone adjustable |
| Microphone | |
|---|---|
| Compatibility | Electret, external bias |
| Power | 3 V, 2 mA current maximum |
| Sensitivity | -28 to -50 dBV/Pa |
| Internal Microphone | Switching: Auto detect on jack insertion or manual Maximum Input Level: 109 dB SPL Gain: Adjustable with 30 dB range |
| System | |
|---|---|
| Frequency Response | 40 Hz to 15 kHz, ±3 dB, 22 kHz low-pass filter |
| Signal to Noise Ratio | 70 dB, A-weighted (threshold of clipping) |
| Total Harmonic Distortion | 0.5% at 1 kHz, 22 kHz low-pass enabled |
| Programming | Via software and USB port on unit or via software and USB port on docking station |
| Physical | |
|---|---|
| Enclosure Material | PC ABS plastic |
| Indicators | 64 x 128 OLED display, variable brightness Red/white multi-function LED (mute, charge status) |
| User Controls | Volume up, volume down, talk, power/status, talk modes, pairing |
| Connections | 1 x 3.5 mm TRRS headset output, CTIA compliant 1 x micro-USB port for control and charging 1 x 4-contact charger port |
| Battery Type | Lithium-ion rechargeable, removable, 1200 mAh 3 x AAA battery compartment (optional) |
| Operating Time | Li-ion: 12 hours for participant, 8 hours for leader (typical) AAA: 9 hours for participant, 6 hours for leader (typical) |
| Charging Time | 2.5 to 3 hours (typical) |
| Power Save Mode | Power down on loss of signal Power down on disconnection of headset (1 min) Power down on charging |
| Compliance | Pending (FCC part 15, ICS-03, CE, RCM, RoHS, WEEE) |
| Temperature | Operational: 14 to 104°F / -10 to 40°C Storage: -4 to 122°F / -20 to 50°C |
| Relative Humidity | 0 to 95% relative humidity, non-condensing |
| Dimensions (H x W x D) | 3.9 x 2.1 x 0.9" / 10 x 5.4 x 2.4 cm (with belt clip) 3.9 x 2.1 x 0.6" / 10 x 5.4 x 1.6 cm (without belt clip) |
| Packaging Info | |
|---|---|
| Package Weight | 0.45 lb |
| Box Dimensions (LxWxH) | 6.0 x 4.4 x 2.1" |
