Features:  -Magic speaker system design, amazing dual power.Built-in low-frequency amplifier design, the mid-low frequency is more powerful, with better sound quality performance.  -Adopt advanced Bluetooth audio decoding chip.Support mobile phones, tablets, TVs and other Bluetooth devices to play music in pairs; Bluetooth transmission distance is greater than 10 meters.  -Support hands-free calling function, built-in high-sensitivity microphone, so that mobile phone calls have an incomparable and enjoyable call enjoymen.  -Support U disk and TF card music playback, MP3 decoding, support full rate playback of MP3 format.  -FM automatically searches and stores stations.  -Built-in FM radio module, which can automatically search and store radio stations, saving time and effort; Support AUX audio input, provide you with computer speaker.    Specifications:  Wireless Bluetooth: V5.0;  Support 1: L2CAP/A2DP/AVCTP;  Can receive AUDIO signal and control the AUDIO device;  Support 2: Support HSP//HFP(Handfree profile),with HANDS-FREE functions;  Working distance: 10M;  SNR: 90dB;  Battery: 3.7V 1200mah;  Playing time: 3 H (volume will affect the playing time);  Speaker driver: 45mm*2;  Frequency response: 120HZ-20KHZ;  Unit size: 75*75*161.7mm;  Unit  weight: 405G;  Charging: 5V/500MAH;  Charging time: 3-4H;    Package Included:  1 * Speaker;  1 * AUX cable;  1 * Charging cable