spec: 1.Frequency Range: 20Hz - 20KHz 2.Impedance: 32 Ohm 3.Maximum Power Input: 20mw 4.Sensitivity:103dB 5.Speaker:10MM 6.Plug Type :3.5mm Stereo 7.Length of Cable: About 1.2m Features: 1.Excellent sound quality . 2.Good for listening MP3/Music, watching DVD/movie, online chatting and game playing. 3.Newest and best selling headband headphone . 4.Headband is adjustable to fit defferent sized heads. 5.Advantage price and high quality for mass purchase. 6.Beautiful pakage for your retail. Note: 1. Price term: Western Union or T/T (30% down payment, the balance before shipment). 2. Leadtime: 15-25 days after sample and order be confirmed depending on your order quantity. 3. Sample available & need pay, but will refund to you when order be confirmed. 4. MOQ: 1000pcs (If we have stock material,we also accept litter quantity). 5. With CE/RoHS or not 6. Any question, pls feel free to contact us.