CELECITY Drive Bluetooth V.4.1 Wireless Sport Earbuds with Built-in Microphone | Noise-Cancelling HD Stereo Sound | Compatible with Apple, Android and Windows Devices BETTER COMFORT AND FIT - Lightweight over-ear design, cord adjustment clip and 4 sizes of soft gel ear tips (S, M, L and XL) provide a secure and comfortable all day fit. BE AT YOUR BEST ANYWHERE - IPX4 rated splashproof construction assures reliable performance through the most demanding activities and the robust rechargeable lithium ion battery system with micro USB charging port provides 8 hours of talk and 7 hours of media playback ability to help inspire peak performance. FEEL INSPIRED BY PERFECT SOUND - Powerful .28 inch drivers deliver stereo music playback with Bluetooth V.4.1 aptX technology and multi-band EQ with Volume Boost to produce CD-quality wireless sound to ignite your inner drive. CLEAR COMMUNICATION EVERY TIME - Adaptive Wideband Speech technology with Bi-Directional Noise Reduction produces HD frequency-enhanced voice intelligibility for clear and effective communication. CONVENIENT AND INTUITIVE OPERATION - Voice dialing, voice prompts and voice announcement of incoming calls in conjunction with the on-board remote provide intuitive and efficient operation while on the move.