TWS-K2 True Wireless BT 4.1 In-ear Stereo Sport Headphone

features Advanced True Wireless (TWS)BT 4.1 (CSR4.1) Technology, Built-in high-grade Microphone Speaker, hands-free function and lightweight design. It will offer you wonderful music, you can greatly enjoy your favorite Music. A super companion for you during daily life and travel.
Features:
[Advanced BT Technology]
Latest True Wireless (TWS) BT 4.1 (CSR4.1) Technology with A2DP/ AVRCP support, ensure transmitting strong signal in high quality high speed and offering high-fidelity stereo music. OfferingStrong Wireless Signal, with a wireless audio range of 33ft (10m), enjoy the freedom to move and the convenience of uncompromising sound quality.
[Unique Design]
Wireless Dual Ear Stereo Design, Left and Right Ear Channel Separation; You can use K2's Left and Right Ear Headset solely (Single Track Mode), and K2 also can be used in pairs (Stereo Mode). Ultra Mini Size(its diameter is only 20mm), offering you Wonderful High fidelity Stereo Sound Effect. Its ergonomic design guarantees 100% Stable and Comfortable when walking, exercising, running, climbing, driving, skating, cycling, fishing and other outdoor sports.
[Emergency Power Supply]
Comes with 450mAh Emergency Power Bank Box, which can be used as a portable power bank and offering Emergency Power Supply to the BT Headphone (Supports charging the BT Headphone more than 4 Times) when in urgent need, keeping you enjoying wonderful music all day without any worry for low battery.
[CVC6.0 Noise Cancellation High-sensitivity Mic]
Adopt Built-in CVC6.0 Noise Canceling Technology and high-sensitivity microphone to reduces ambient noises and grasp the detail of voice, enabling clearer sound from microphone. You can get high quality hands-free phone conversation even on the street or inside a shopping mall.
[Long Standby Time Fully Compatibility]
Built-in rechargeable Lithium battery lasts up to 4 hours of Talking Time / 3 hours of Music Playing Time and 40 hours of Standby Time per charge cycle. And universally compatible with most BT-enabled devices, including iOS / Android / Windows Smart phones Tablet PC and other BT devices.