Wireless sound amplificaiton occurs via three primary microphone types; handheld, lapel (Laveliere) microphone, and the earpiece.  Which is right for you?

A handheld wireless microphone is perfect for any situation where the mic is passed around or only used for a short amount of time.  This includes open prayer times, open announcements, and short times like candle lighting with scripture reading.

These include:

• Shure PGX24/SM58 Hand-Held Wireless System
• Nady DKW-DUO Dual Channel VHF Hand-Held Microphone System
• Sennheiser ew135G2 E835 Cardioid Hand-Held Wireless System
• Sennheiser freePORT Wireless Vocal Set
• Audio-Technica ATW-252 Freeway VHF Handheld Wireless System

The lapel / earpiece microphones are ideal for long speaking or long use needs such as on actors.  The problem with the lapels is whenever the speaker turns their head far left or far right, their audio will lower due to the distance from the microphone.  While the rule is one fist below the lowered chin, a wide head turn can effect sound.  If you need a good lapel (laveliere) mic, try these:

• Sennheiser ew112G2 ME2 Omni Lavaliere Mic Wireless UHF System
• Audio-Technica ATW-3131a Lavaliere Wireless System With AT831CW
• Audio-Technica ATW-251 Freeway VHF Lavaliere Wireless System
• The Nady lapel systems don't have favorable ratings so I suggest avoiding these.

Finally the earpiece / headset microphones...

• Sennheiser ew152G2 ME3 Headset Microphone Wireless System (high rating but very obvious and obtrusive)
• Audio-Technica ATW-701/H92-TH Wireless System
• Shure PGX14 Lavaliere Wireless System with Beige AT892C Headset Microphone

If you already have a wireless lapel mic but want to transfor it to a headset, look for headset components that are just the wire/mic for your brand such as the Audio-Technica PRO 92cW-TH Wireless Headset Microphone.

One other use for the headset mic's is for drummers, pianists, and any other musicians who also sing.