Yaesu Heavy Duty STR On-Demand Intercom Specific Low Power Transceiver Black "Easy Setup Type" SRFD51-B 1 Unit

Catalog number: SRFD51-B Features: ●Even if there is interference, the teleport function allows you to easily move channels and shut out interference. ●Dual channel reception allows you to monitor two operations at the same time. ●24mm slim body, robust, dustproof and waterproof (IP68) structure. ●Built-in high-quality, loud speaker with class-leading 700mW. ●Two PTT operations can be used at the same time: one-click hands-free, which starts transmission with one click and automatically returns to reception when the conversation is finished, and conventional PTT operation with a long press. Applications: ●For communication within factories and construction sites. Specifications: Color: Black Width (mm): 58 Depth (mm): 23.5 Height (mm): 83 Antenna length (mm): 99 Compatible repeater: EXR100A Urban call distance (km): 0.1-0.2 Suburban call distance (km): 1 Audio output (mw): 700 Power source: Rechargeable, dry battery Protection rating: IP68 License/qualification required: Not required Transmitting/receiving frequency (MHz): Alternate call (simplex) 422MHz band, relay call (semi-duplex) 421MHz band / 440MHz band Number of channels: Alternate call 20ch, relay call 27ch Product name: Heavy Duty STR On-Demand Intercom Specific low power transceiver Noise canceling: None Group talk: Yes Call type: Alternate call, relay call Communication method: Simplex and semi-duplex Set contents/accessories: Belt clip Note: ●A lithium-ion battery and charger, or a dry battery case (sold separately) are required for use.