Bluetooth version: v5.0material: abssupporting protocols: a2dp, avrcp, hsp hfptransmission distance: 10 metersspeaker impedance: 4ohmspeaker unit: 40mmwhether to support tf card: yesmaximum expansion capacity: 32gfrequency response: 100hz - 20khzseveral speakers: 2output power: 2 x 5winterface charging port, audio port, tfbattery capacity and type: 1200mahbattery voltage: dc 5vcharging time: 2 hoursstandby length: 100 hoursplay time: 6 hours
