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 resistance and durability with high-quality, sturdy, and environmentally friendly PU wire 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: 8 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: -40C to 100C Material: PU80A Package Contains: 1 x Microphone Speaker