Check the listing for details. Wireless Bluetooth Speaker Surrounding Sound bar. Condition: New. Listed at 36.82 USD. Modern Simplicity Style & HIFI Surround Sound: Appearance is cylindrical strip shape, with modern simplicity style. 20W Dual channel audio driver with DSP bass technology chasing deep bass stereo sound and loud volume, experience the high quality and rich tone. Take you into the auditory feast.Up to 6 Playing Modes: They are mainstream Bluetooth mode, TF card, U disk, AUX mode and connecting to a TV, which need a RCA cable. It can even be used as a clock.Play for longer : Built-in 2200mAh class-leading battery gives 10 hours of active use from a single charge.Bluetooth 4.2: Using Bluetooth 4.2 version, the effective distance is more then 10 meters. It also provides a communication tool without delayed and sound stability.Wide compatibility :It is compatible with most market mainstream mobile phones, tablets, laptops, television and most other Wireless-specific electronic devices. If your music player has no Bluetooth function. That doesn't matter. You can use the Audio mode. The item included the RCA cable, which can be used on the TV.Specification:No APP neededBuilt-in microphone: Yes, handsfreeFrequency response: 65Hz-18KHzOutput power: 10W * 2 THD + N ≤ 1% (1KHz / 0dB)Charging voltage: Micro USB 5V / 1.5ACharging time: about 5 hours Speaker size: 4Ω / 2 x 10WMusic playing time: about 5-8 hours (depends on the music style)Battery: 2200mAh / 7.4V, (18650 battery 2 pieces in series)Effective distance: ≥10 MLED display: when charging, bright red. fully charged, red light turns off. Compatible Devices: Smart Bluetooth devices such as mainstream mobile phones, tablet PCs, notebooks, Bluetooth TVs, etc. Bluetooth V4.2 Bluetooth is also used, and the effective distance is more than 10 meters from the connection distance, and the playback is more freedom.