Speaker: magnetism prevent D36/(4Ω)/3W
Loudspeaker output:≤3.5W
Rating power: 1.7W*2(2.8W*2 Input DC5V)
Signal-to-noise: 86db
Frequency response: 100Hz-22KHz
Battery charging voltage: 5V/+0.5V
Music playing: up to 6 hours
Battery type: rechargeable lithium
Net weight: 112g
Size: 55.5mm*55.5mm*77mm(closed resonator)