The connect line use 3.5mm plug,the NSP-100 speaker can be used on most two way radio.With this NSP-100 external speaker you can increase the volume of your walkie-talkie,make the communication loud and clear.The connect line is 3 meter long,you can put this mini external speaker on the wall,celling and still can connect your device.Use plastic to make the body,this NSP-100 radio speaker is strong and lightweight,portable for travel,field trip.You can use this NSP-100 external speaker to magnify the volume,perfect for using on environment with loud noise,such as construction field.Specification:Material: Plastic.Color: Black.Size: 80*70*40mm.Plug: 3.5mm.Power: 8W.NoteThere might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement.Package included:1* Speaker.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it"