Samson HT7 Wireless Handheld Microphone
With Q7 Dynamic capsule

The Samson HT7 Wireless Handheld Microphone is designed for the Concert 77, UM1 and Series One receivers.  It transmits via UHF to the receiver.  The Samson HT7 Wireless Handheld Microphone features:

-Audio on-off switch - When set to the "on" position, audio signal is transmitted. When set to the "off" position, the
  audio signal is muted. Because the carrier signal remains during muting, no "pop" or "thud" will be heard. Note that
  turning this off does not turn off the transmitter power - it is simply a way to temporarily mute the transmission of
  audio signal. If you don't plan on using the transmitter for extended periods, turn off the transmitter power by using
  the power on-off switch.
-Battery level meter - This set of three multicolor LEDs indicates relative battery power, indicating whether the installed
  battery is at low (red), mid (yellow) or high (green) strength. One of these will light whenever the HT7 is powered on.
  When the red "low" indicator lights, RF performance is degraded and the battery needs to be replaced.
-Power on-off switch - Use this to turn the HT7 on or off (to conserve battery power, be sure to leave it off when not
  in use).
-Microphone Input Level control (trimpot) - This input sensitivity control has been factory preset to provide optimum
  level for the particular microphone capsule provided.  It is recommend that this not be adjusted manually. If
  necessary, however, you can raise or lower the input level.
-Battery holder - Uses a standard 9-volt alkaline battery.  WARNING: Do not insert the battery backwards; doing so
  can cause severe damage to the HT7 and will void your warranty.