A new generation of ocean bottom seismometers (OBS) has been developed by Ifremer (French Research Institute for Exploitation of the Sea). For the first time, the acquisition and release electronics have been integrated to decrease the size, weight and cost of the equipment. Downloading of data by USB cable and recharging of batteries is accomplished from the outside allowing redeployment of the equipment without opening the glass sphere. During an oceanographic cruise in the Okinawa Trough, off Taiwan, the equipment was successfully tested together with the older generation OBS in Ifremer. Results from the deployments of the first prototype are described here.