Bluetooth no WIndows CE 5.0 com C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using InTheHand.Net.Sockets;
using InTheHand.Net.Bluetooth;
using System.IO;
using InTheHand.Net;
using WinCE.entidades;

namespace WinCE.Utils
{
    public partial class Imprimir : Form
    {
        private Guid service = BluetoothService.SerialPort;
        private BluetoothClient bluetoothClient;

        public Imprimir()
        {
            InitializeComponent();
            //buscaDevice();
        }

        private void btnBuscar_Click(object sender, EventArgs e)
        {
            buscaDevice();
        }
        private void buscaDevice()
        {
            lbMsg.Text = "Searching devices...";
            //BluetoothRadio.PrimaryRadio.Mode = RadioMode.Discoverable;
            bluetoothClient = new BluetoothClient();
            Cursor.Current = Cursors.WaitCursor;
            BluetoothDeviceInfo[] bluetoothDeviceInfo = { };

            bluetoothDeviceInfo = bluetoothClient.DiscoverDevices(10);

            listDevice.DataSource = bluetoothDeviceInfo;
            listDevice.DisplayMember = "DeviceName";
            listDevice.ValueMember = "DeviceAddress";
            listDevice.Focus();
            Cursor.Current = Cursors.Default;
            lbMsg.Text = "Impressoras Encontradas:";  
        }

        private void btnPrint_Click(object sender, EventArgs e)
        {
            
            if ( listDevice.SelectedValue != null )
            {
                try
                {
                    bluetoothClient.Connect(new BluetoothEndPoint((BluetoothAddress)listDevice.SelectedValue, service));
                    
                    imprimir();
                    //MessageBox.Show("Connected to " + listDevice.SelectedValue.ToString(), "Info");
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Erro");
                }
            }
        }

        private void imprimir()
        {
            lbMsg.Text = "Enviando para Impressora...";
            try
            {
                StreamWriter strSend = new StreamWriter( bluetoothClient.GetStream(), new System.Text.UTF8Encoding());

                string dtaRead = GeraSaida.FormatSaidaString(Dados.movLista);
                strSend.WriteLine( dtaRead+"\n\n\n");
                strSend.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Erro");
            }
            this.Close();
        }

        private void lbMsg_ParentChanged(object sender, EventArgs e)
        {

        }

    }
}