Angular2 static HTTP client

I want to use static HTTP client service for some reasons. I tried it like the following but I got an error. Is creating static the service possible?

static service:

import { Http, URLSearchParams, Headers }  from '@angular/http';

export class ExampleService {
    static postSendTransaction(data, callback) {
        Http.post('https://xxxxxxxx', JSON.stringify(data), { // I got error here
            headers: new Headers({ 'Content-Type': 'application/json' })
        }).subscribe(
            response => {
                callback({data: response.json(), error: null});
            },
            error => {
                callback({data: null, error: error.statusText});
            }
        );
    }
}

example call:

ExampleService.postSendTransaction(this.data, postSendTransactionCallback);

I got this error:

Property 'post' does not exist on type 'typeof Http'.