Saramonic WiTalk9 Wireless Intercom for 9 Persons

WiTalk9-SMH Master Headset / WiTalk9-SRH Remote Headset

Transmission Range: ≥ 1640’ (500m)
Modulation Mode: GFSK
Bit Depth / Sampling Rate: 16-bit / 16kHz (with 8 remote headsets connection)
Voice Delay: ≤ 83ms (with 8 remote headsets connection)
Receiving Sensitivity: < -93dB
Noise Cancellation Depth: 50dB
Frequency Response: 150Hz - 8kHz
Signal-to-Noise Ratio: >65 dB
Distortion: < 1%@94 dB SPL, 1 kHz
Microphone Type: Electret
Input SPL: > 100 dB SPL
Output SPL: 128 dB
Battery Capacity: 1450 mAh
Power Requirements: Powered by Battery or USB-C charging port
Master Headset Runtime: ≥10-hours (with 4 remote headsets) ≥9-hours (with 8 remote headsets)
Remote Headset Runtime: ≥15-hours
Charging Time: ≤3.5-hours (charging via USB-C port in shutdown mode)
Weight: 8.04oz (228g) (on-ear foam cushion and battery included)
Working Temperature: -10℃ ~ 50℃
Storage Temperature: -20℃ ~ 55℃

WiTalk9-BP Battery
Type: Li-Polymer
Power: 3.7V - 1450mAh – 5.365Wh
Dimensions:  (48 x 34 x 13mm)
Weight: (34g)

WiTWiTalk9-CB10 10-Slot Charging Bay
Port: DC jack
Dimensions: (231 x 127 x 31mm)
Weight: 10.5oz (298g)
Charging Power: <20W
Power Supply Range: 12V±10%
Current: <1.6A
Charging Time: ≤3.50-hours
Working Temperature: 0℃ ~ 50℃
Storage Temperature: -10℃ ~ 60℃