... sound effect.Foldable bluetooth headphone models design easy to carrySpeaker power output: 2*10 mwPower: Rechargeable lithium ion battery (3.7v 460mah ... mm,Weight:46 gSpeakerSpeaker size:27mm *2 Power:2W4Ω impedance: 32Ω±15% Resonance 220Hz±20%HZ Sound Pressure: 130±3 dB at ... key for, Heavy bass high simulation speakers.In the BoxColorful box, BH-001, User Manual, USB cable, Charger G.W: 0 ...