Speakers - Universal - Portable Bluetooth Wireless Speaker Outdoor Usb Rocker Column Speaker Support Aux TF FM Radio Subwoofer Solar Power Solar Soldpeak | Portable Speakers (Blue) Highlights Universal Portable Bluetooth Wireless Speaker Outdoor Usb Rocker Column Speaker Support Aux TF FM Radio Subwoofer Solar Energy Solar Soldpeak | Portable Speakers (Blue) Portable Bluetooth Wireless Speaker Outdoor Usb Rocker Column Speaker Support Aux TF FM Radio Subwoofer Solar Power Solar Soldpeak | Portable Speakers (Blue) Specification: Bluetooth Version: 5.0 Support L2CAP/A2DP, AVRCP, used to receive stereo audio signal With hands-free profile, voice communication is possible Bluetooth distance: 10 meters Support TWS (serial function) Loudspeaker speaker plays TF card / U Disk Format: MP3 Battery voltage / capacity: 1200mAh Degree of distortion: 0.1% Battery charging time: 2-3 hours, solar charging support Radio: external telescopic antenna with a strong pole and a strong signal. Frequency: 100hz-20kHz LED lighting: free control switch Volume: 180*67.5*90mm Blue color