Colour Name:Black her.    Big Battery Capacity Offers up to 5 Full Charges Portable charging case provides constant power during the tour.  750mAh capacity charging case delivers up to 5 full charges or totally 18 hours extra battery life for both earbuds.    Small Enough to Wear Invisibly With tilt in ear style and mini body, you could wear it no matter in classroom, office or car.  It's likr a music elf in ears.    4g Ultra Light Weight Single earbud like a feather on weights 4g only, softer and lighter like ever.    With IPX4 Waterproof, No Fear of Sweet Any More With multiple processes applied in the housing, the earphones has gained IPX4 waterproof.  Now you don't worry about water drops or sweat when wearing.    With CSP 4.2 Chipset, You Could Enjoy Amazing Wireless Experience CSR63120 quality Bluetooth chipset is downward compatible with Bluetooth V4.1 and other profiles.  Thanks to CVC noise isolation, you could embrace HD audio with no restriction of cable.    Specification: Model: T1-Pro Standby time: approx.70 hr Talking time: approx. 2 or 3 hr Operation range: 10m Battery Capacity(earphones): 3.7V 40mAh Battery Capacity(charging case): 3.7V 750mAh Input parameter(charging case): 5V 300mA Battery type: li-ion Bluetooth version: V4.2 Bluetooth profile: HFP/A2DP/HSP/AVRCP Color: Black/White(optional) Item size: 2.9 * 2.5 * 1.94cm / 1.14 * 0.98 * 0.76in(L * W * H) Item weight: Approx. 17.8g / 0.63oz Package size: 15.5 * 11.1 * 4cm / 6.1 * 4.37 * 1.57in(L * W * H) Package weight: 77g / 2.72oz   Package list: 1 * Blueooth earphones 3 * EarTips 1 * Charging cable 1 * User Manual
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