Sennheiser Wireless Hand mic	Sennheiser Wireless clip Mic	Sony Portable DAT Recorder	Audio Tchnica Gun Mic	SQN4s Audio Mixer
Sennheiser Headphone	Sennheiser 416 Gun Mic	Sennheiser Hand Mic	Sennheiser Clip Mic	Portable MD Player

Reference link:

SQN4s Audio Mixers: 

http://www.aem.nl/html/SQN.html#4x4

Audio Technica Gun Mics

http://www.audiotechnica.com/prodpro/profiles/AT835b.html

Sennheiser Product

416 Gun mics :

http://www.sennheiser.com/microphones/rfm/rm_1d008.htm

Wireless Hand Mics :

http://www.sennheiser.com/evolution/ewl/ewl.html

Wireless Clip Mics :

http://www.sennheiser.com/evolution/evomic/evomic.html

Hand Mics :

http://www.sennheiser.com/microphones/bm/bm_1d005.htm

Clip Mics :

http://www.sennheiser.com/microphones/bm/bm_1d008.htm

Headphones :

http://www.sennheiser.com/headphones/dynamic/hd25.htm

Sony Portable DAT 

http://bpgprod.sel.sony.com/bpcnav/app/99999/10/78/12443.99999.product.BPC.html