The MILWAUKEE Concrete Trench Vibrator provides consistent start-up and the most reliable pour. The brushless motor has enough capacity to push heads up to 2-1/2” at over 11,000 vib/min for optimum compaction in even the toughest concrete. The rechargeable battery requires no regular maintenance, providing instant power without gas and emissions issues for safer indoor or outdoor operation. Push-button start reduces downtime, and the wireless remote allows you to turn the machine on from up to 30 feet away for more freedom. The modular design of the device allows for easy removal from the backpack. The backpack vibrator can be tracked, controlled and protected from a mobile device or computer thanks to the Bluetooth tracking network.