Hiroyasu Hand Microphone Speaker Mic 35mm Y Plug Connector for HIROYASU HI-R23 HI-B6 Zello Walkie Talkie Vertex Standard VX-531 Hiroyasu Remote Control Hand Microphone Speaker 3.5mm Y Plug Connector for Hiroyasu Zello Walkie Talkie HI-R23 HI-B6 Yaesu VX-3R, VX-5R FT-60R, FT1DR, FT2DR, FT-270 Vertex Standard VX-168 VX-300 VX-160 VX-418 EVX-261 VX-231 EVX-531 EVX-534 VX-228 Portable Two Way Radio Features: 1. Lightweight and simple design with clear sound quality, dual-color shell, attractive style, comfortable grip, and IP54 waterproof rating 2. 360-degree rotatable stainless steel back clip for easy carrying 3. High tensile strength and durability with high-quality, sturdy, and environmentally friendly PU cable 4. Compatible with 3.5mm Y plug series walkie talkies such as Vertex Standard VX160, VX168, VX228, VX231, VX261, EVX531, EVX534, EVX539, EVX459 and Hiroyasu HI-R23 Zello Walkie Talkie Technical Specifications: Speaker Parts: Size (mm): 36 Sensitivity: 100 ±3dB Impedance: 8Ω Rated input power: 1W Maximum output power: 2W Microphone Parts: Size (mm): 6.0 x 2.7 Sensitivity: -35 ±3dB Frequency: 1kHz Impedance: 2.0V/2.2K Working voltage: 1-10V Cable Parts: Size (mm): 4.0mm L=3500mm (200+280+200) Temperature resistance: -40°C to 100°C Material: PU80A Package Includes: 1 x Microphone Speaker