Bob, The flexible Wireless Bluetooth SpeakerUnique flexible suction cup design, suitable for any environmentProduct Features:                              - Unique flexible suction cup design, suitable for any environment                            - High fidelity speaker,noise interference cancellation                                    - Bluetooth 3.0 smart connection, simple and smart to useGerman Red dot design award winner                Nontoxic green elastic silicone, oil resistant, washable          - Suitable for the office, in-car and outdoor environmentDimensions: 62x59mm                        Weight: 90g                                Output Power: 3W                            Impedance: 4Ω                          Bluetooth 3.0                                Port: micro USB                            Battery Capacity: 300 mAh                Standby time: 6-7 hours                    Charging standard: DC 5V, 500ma            Charging time: 1.5 - 2 hours