Oblanc COBRA210 Amplified Subwoofer 2.1 Stereo Headphones with Built-in Battery Improved Vocals Deeper Bass SILVER

Built-in subwoofer in each ear cup will take your movies, music and entertainment to a whole new level. Delivers all the performance of a full-sized home theater system in your ears. The amplified subwoofer with individual Treble and Bass volume control, provide you with a fuller, cleaner theater vibrating sound with extra "BOOM" that you can feel. Package Includes: Oblanc COBRA210 SILVER Subwoofer Headphone w/In-line Microphone. 3.5mm Mic/Line Audio Cable for Computers, and Laptops (42"). 47" USB Charging Cable (Type-A Male to Mini Type-B Male). Warranty Pamphlet. Oblanc Rubber Key Tag.

2.1 Amplified Stereo Channel with Independent Bass. Gold Plated 3.5mm 4-pole Connector Compatible with Smartphones, and Tablets. Extreme Comfort and Fit Leatherette Ear Cups. 2 Neodymium Drivers In Each Ear Cup: 30mm 32O for Treble 40mm 32O for Bass.

Volume Controls: (Can be Adjusted Individually) Main Volume Bass Volume. Tangle-free Cord with In-line Microphone and Call Control. Rechargeable Battery Built-in (Up to 10 Hours Per Charge): Battery Type: Li-polymer (lithium polymer) No Memory Effect Battery Capacity: 450mAH (300 charge-discharge cycles before the capacity drops to 80%).

Acoustic Design: Dynamic, Closed-back. Frequency Response: 20 - 20KHz. Speaker Sensitivity: 116dB SPL (1mW) @ 1KHz.

Total Harmonic Distortion (THD):

Microphone Size: 4mm x 1.5mm. Microphone Sensitivity: -58dB. Cable Length: 62"