AOER Universal Listen-Only Acoustic Tube Headset Earpiece with 2.5mm jack for Walkie Talkie motorola Radio Universal Listen-Only Acoustic Tube Headset/Earpiece For motorola Radio Walkie Talkie Most radios and handheld mics with 2.5mm audio jack Excellent for use in police, military, nightclubs, bars, paintball, security,restaurants, hotels, bouncer, warehouses, and noisy environments. Ideal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance.Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. Compatible Models: Most Radios with 2.5mm headset jack or handheld/shoulder mic with 2.5mm headset jack