Enjoy the Favorite Music Anytime and Anywhere with ONN X3 Music Player Bluetooth Sport Earbuds!ONN X3 Bluetooth Sport Earbuds is a multifunctional MP3 player earphone which built-in 8GB TF card so that you can download and play your favorite music as you wish. It supports 7 kinds of sound effect and switches freely for different music so as to bring you the perfect music experience ( only for local music ). Sweatproof design allows you enjoy the music without worry while doing sports. In addition, with noise canceling technology, it will help you to get rid of the ambient noise and have clear calls.Main Features:Not only a Bluetooth Sport Earbuds, but also a Music PlayerBuilt-in 8GB TF Card: support download and enjoy the local music anytime anywhere7 Kinds of Sound Effect: switch freely for local musicAdjustable Play Mode: order play and shuffle play optional for local musicBluetooth V4.2 Technology: newest 4.2 version delivers faster and more stable connection and transmissionBuilt-in Mic: support hands-free calls, enhance the driving safety"On-cord Control": multi buttons, supports volume adjustment, song switch, answer / hang up callsBattery power indication for iOS devicesNoise canceling for clear talkingSuper bass for excellent music experienceSweatproof design, enjoy the sport freely Brand: ONN Model: X3 Color: Black,Blue Wearing type: In-Ear Function: Answering Phone,Bluetooth,Microphone,MP3 player,Noise Cancelling,Song Switching,Voice control Connectivity : Wireless Connecting interface: Micro USB,TF card Application: Mobile phone,Sport Frequency response: 20-20000Hz Impedance: 16ohms±15 percent SNR: More than 45dB Sensitivity: 98.6dB ± 3dB ( at 1KHz ) Talk time: 5 hours Music Time: 4.5 hours Standby time: Less than 150 hours Charging Time (h): 2 hour Bluetooth version: V4.2 Bluetooth distance: W/O obstacles 10m Bluetooth protocol: A2DP,AVRCP,HFP,HSP Bluetooth mode: Hands free,Headset Battery Types: Rechargeable Li-polymer battery Battery Capacity(mAh): 120 mAh Package weight: 0.228 kg Package size (L x W x H): 17.00 x 16.00 x 4.50 cm / 6.69 x 6.3 x 1.77 inches Package Contents: 1 x ONN X3 Bluetooth Sport Earbuds, 1 x USB Cable, 2 x Pair of Earbud Tips, 1 x User Manual ( English and Chinese )