Only compatible with Retevis RT21 RT22 RT27 RT7 H-777 RT19 RT18 RT22S H-777S 2 way radios; not fit for other brands walkie talkies; please carefully check the length and spacing of the pins in the picture to determine whether it is suitable for your walkie-talkie
2 Pin to 3.5mm Walkie Talkies Headset Adapter; space of two-pin 8mm for Retevis 2 way radios to adapt the standard 3.5mm female phone audio earpiece transfer cable
Universal compatibility with most 3.5mm female phone audio headsets; it solves the problems of using the public walkie talkies inconvenience when you you don't have a walkie-talkie headset
Supports variety of brand mobile phone headset to achieve compatibility; so you can use your own headphones to talk on the walkie-talkie
It transmits through phone button to transmit clear loud nature sound; supports two channels receiver of two ear plugs