Pls Notice: 1.Only include the soundbar, the other products in the picture just for illustration is not included!!! 2.Please charge this Soundbar for the first use! This is an updated speaker.Our speakers have been improved in terms of Bluetooth version, speaker power, transmission distance and standby time. We believe that you will love it! All-round pearl cotton packaging, effectively prevent the product from being damaged in transit! ! ! Luxury upgrade specification list:(550 * 50 * 50mm) 1 * speaker (for all TVs) 1 * charging cable 1 * RCA line 1 * remote control 1 * manual specification: Bluetooth version: V4.2 Speaker power: 10W × 4 Colour: Black Use transmission power: 1.49mW Transmission frequency: 2.48GHz Transmission distance: 8-10 meters Music playback time: about 2.5 hours Charging time: 2-3 hours Standby time: 240 hours Supported formats: A2DP, AVRCP, HSP and HF Battery: 18650, 3.7V / 2000mA Signal to noise ratio: -80db Frequency response: 20HZ-20KHZ Charging voltage: DC 5V / 1A-2A Charging socket: micro 5pin (V8) Support TF card audio input Support 3.5mm audio input Support U disk audio input With radio function. Size: 550 × 50 × 50mm Weight: 675 grams Standard specification list::(330 × 50 × 50mm) 1 * speaker (for all TVs) 1 * charging cable 1 * 3.5mm audio cable 1 * manual specification: Bluetooth version: V4.0 Speaker power: 10W × 2 Colour: Black Battery type: 18650 polymer battery Battery capacity: 2000mA Use time: about 3.5 hours Supported formats: A2DP, AVRCP, HSP and HF Frequency response: 20Hz-20KHz Transmission frequency range: 2.402G-2.480G Signal to noise ratio: ±75db Transmission distance: 8-10m Charging type: microUSB 5V/1.5A Size: 330*50*50mm Bare metal weight: 420g