Dual Charging Unit


AKG WMS420 Wireless System Review

The AKG CU 400 is a dual-bay battery charger that allows a user to place both the AKG HT 400 handheld transmitter and PT 400 bodypack transmitter directly into the unit for quick, safe charging without having to remove the battery. Included with the unit are 2 x “AA”-sized 1.2-volt high-current NiMh batteries that deliver 25% more use time than standard rechargeable or alkaline batteries. The CU 400 fully charges these high-performance batteries either in the transmitters or just plugged into the bays in less than 1.5 hours and WMS 400 transmitters will deliver 8 hours of operation from a full charge.

The CU 400 ensures that it recharges the batteries in the quickest, safest way without risk of overcharging. Two LEDs on the front of the CU 400 indicate when the unit is charging. In addition to the convenience of recharging the batteries inside the transmitters, the CU 400 lowers the operating cost of the system tremendously and will pay for itself in battery cost saving.  The CU 400 also contributes to a cleaner environment.

The CU 400 provides intelligent battery management as well as highly comfortable charging. A valuable tool for all WMS 400 users as installers, tour sound managers, rental companies, musicians, etc.

Introduced in spring 2004, the AKG WMS 400 wireless system has become a runaway best-seller thanks to its unique combination of dazzling cosmetics, class-leading performance and incredible features heretofore unknown anywhere near its price range.

The WMS 400 and CU 400 can be further expanded to a large custom multi-channel wireless system with the large selection of active and passive antennas, in-line signal amplifiers, multi-couplers and other accessories from the top-of-the-line AKG WMS 4000 system. State-of-the-art wireless performance has never been easier to use or to afford than with the AKG WMS 400.


  • Increased comfort
  • Possibility of simultaneous charging of batteries
  • Cost effectiveness
  • Less environmental pollution
  • "Plug-In & Charge"
  • Automatic start and stop of charging
  • Quick Charge: 1.5 hours yield up to 8 hours operating time
  • Extended operating time
  • Optimum lifetime of batteries achieved by special charging algorithm


  • Operating voltage: 5 V DC, 1.5A max
  • Batteries: NiMH or NiCd rechargable with 1500mAh minimum capacity
  • AC voltage: Refer to label on AC adapter
  • Charging current: typ. 1.4 A in single-slot mode, typ 0.7 A if both slots are used simultaneously
  • Charging time: 1.5 hours in single-slot mode, 3 hours if both slots are used simultaneously
  • Dimensions (W x H x D): 7.4" x 4.5" x 3.1" (188 x 115 x 78 mm)
  • Weight: approx. 14.8 oz. (420 g)
Add to Cart

We're sorry, only of this item available

Call a Sales Pro at for more information

Serving Contractors, Dealers, and Installers Since 1977

Contact: 1-800-828-0509 / Hours: Mon - Fri 7:00AM - 7:00PM