Sennheiser Product Evolution Wireless G2 500 Series General Description This top series features 9 frequency banks with up to 20 presets each, a two-colour backlit graphics display which also indicates the channel names, headphone output on the receiver, built-in equalizer and Soundcheck mode. Audio outputs are via balanced XLR and 1/4" jack, with low battery transmission and a battery status indicator. Choice of handheld, bodypack or plug-on transmitter (with switchable phantom powering capability) and rack-mount or bodypack receiver.