Features: -Bluetooth Bluetooth V5.0; -The transmitting state supports two Bluetooth devices to connect and play simultaneously; -Support Bluetooth reception/support Bluetooth transmission; -Clear all paired Bluetooth information; -Automatically connect back to paired Bluetooth devices after power on; -Five minutes without equipment connection, automatic shutdown; -The playing time of full power music is about 7 hours; -Bluetooth supports A2DP, AVRCP, HFP, HSP; -Support Bluetooth stereo music DSP technology; -AUX input/aud output; Specifications: Charging voltage: 5V; Charging current: 150mA; Working current: 35mA; Shutdown current: 41uA; Charging time: about 2H; Working hours: about 7H; Battery capacity: 280mAh; Bluetooth version: Version 5.0; Bluetooth sound processing: with DSP technology and A2DP (Advance Distribution Profile) function; Bluetooth frequency: 2.402-2.480GHz; Bluetooth transmission distance: straight line 10M; Bluetooth microphone effective distance: 0.5~2M; Bluetooth transmit output power: 6dbm; Packaging accessories: 1 * Host; 1 * Audio cable; 1 * Micro-USB charging cable; 1 * Instructions