<p>Is wireless: Yes</p><p>Vocalism Principle: Dynamic</p><p>Volume Control: Yes</p><p>Control Button: Yes</p><p>Codecs: AAC</p><p>Private Mold: YES</p><p>Brand Name: HEYYBIT&nbsp;</p><p>Model Number: F9</p><p>Style: In-ear</p><p>Communication: Wireless</p><p>Use: Portable Media Player, Mobile Phone, Aviation, COMPUTER, Dj, Gaming, Sports, Audiophile, Travel, PROFESSIONAL, For Internet Bar, For iPod, HiFi Headphone</p><p>Function: Waterproof, Noise Cancelling, Microphone, LED Display</p><p>Place of Origin: China</p><p>Waterproof Standard: IPX-7</p><p>Active Noise-Cancellation: NO</p><p>Certificate: CE ROHS</p><p>Listening music: 4-5hours</p><p>Charging Case Battery: 2000mAh</p><p>Product name: F9VCV51-W</p><p>Material: ABS</p><p>PCB:JL Chip</p><p>Color: White</p><p>Certification: FCC, ce, RoHS</p>