PULSAR S HPA Engine with TITAN II Bluetooth® - the world’s cheapest & most advanced single solenoid HPA engine. The first HPA engine controlled by ETU with optical sensors. Thanks to the newest flagship TITAN II Bluetooth® in tandem with HPA technology you get a ludicrous trigger response, unknown before in the airsoft world. With the user-friendly GCS App for smartphones you can manage your AEG settings live, even straight from the field! Set the fire selector modes, trigger sensitivity, ROF or connect smartwatch in order to know how many BBs are still there in your magazine.