BT-Pusher is a Bluetooth marketing device manufactured by DeviceGate that allows businesses to advertise and send promotional content to nearby Bluetooth-enabled devices. It has various models that differ in transmission range and connectivity options. BT-Pusher provides an affordable alternative to traditional advertising with benefits like unlimited reach, viral potential, and remote management capabilities. Successful campaigns have been run with BT-Pusher in airports, trade shows, and large retailers in China.