microphone has holes and a "Motorola" name. The HMN3174 mike is identical, except that the front cover has horizontal slots and a "Radius" nameplate.Programming instructions for your Motorola Radius two-way radio may vary slightly by model within the P1225 series. Contact Motorola customer service for 99FT4073 95C98O Safety Booklet Portable (P1225 UHF Portable Radio) by Motorola Solutions · Available Manuals · Viewing Manual.