Chord NU4-N Quad UHF System-Neck/Lapel 171.844UK UHF wireless system with 4 independent channels. The receiver is 19" rack-mountable and features 4 separate XLR outputs or a mixed jack output. Available in sets with 4 handheld or 4 beltpack transmitters (with a choice of neckband or lavalier microphone for each beltpack) or a combo set with 2 of each. Suitable for vocal groups, theatres and presentations. Individual or mixed outputs 4 licence-free UHF frequencies with pilot tone Supplied with 4 colour coded transmitters 19" rack-mountable (1U) The box for this item contains: 1U rack-mountable receiver 4 x handheld or beltpack transmitters (with neckband and lavalier mics) 2 x UHF antennas 2 x BNC extension leads (for rack-mounting) 2 x rack-mount ears DC power adaptor 8 x AA batteries Power supply: 12-18Vdc 500mA adaptor (supplied)Dimensions: receiver: 482 x 225 x 44mm (inc. rack ears)Weight: receiver: 3.0kgBatteries: 8 x AA (included)Carrier frequencies: Red 864.8 ,Green 864.3, Blue 863.42, Yellow 863.1 (all in MHz)