What's in the box:

TWS-K2 True Wireless Bluetooth 4.1 In-ear Stereo Sport Headphone (Black & Silver)

Music is a super companion for humans, which can make you relaxing and enjoy colorful life. A portable music player device is essential for music lover. We are be honored to recommend K2 Stereo Bluetooth Headphones to you. K2 Bluetooth Headphone is specially designed for music lovers and sports enthusiast, which features Advanced True Wireless (TWS)Bluetooth 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.

ccccccccccccccc
Specifications:
Model: TWS-K2
Product Type: True Wireless (TWS) Bluetooth Stereo Headphone.
Bluetooth Version: Bluetooth 4.1 (CSR)+ EDR; Class 2.
Supports HSP, HFP, A2DP, AVRCP protocol.
Battery Capacity Display, supports for iPhone.
Frequency Response Range: 21Hz-18KHZ
Operation Range: Up to 10 meters
Microphone: Built-in high-sensitivity microphone (-38dB).
Impedance: 16O
Sensitivity: 95dB
Degree of distortion: 1%
SNR 95
Headset Battery: 60mAh Rechargeable Li-ion battery
Power Bank Box Battery: 450mAh Rechargeable Li-ion battery
Charge Time (for Power Bank Box): About 2.0 hours
Music Playing Time: About 3 hours (The Music Volume will affect the time)
Talk Time: About 4 hours
Standby Time: 40 hours
Charge Time:1 ~ 2 hours
Charge Port: Micro USB
Color: Black
Main Item Size: 2.8 * 2.8 * 2.0cm / 1.1 * 1.1 * 0.79in
Main Item Weight: 10g / 0.37oz
Package size: 18.0 * 9.0 * 3.5cm / 7.0 * 3.54 * 1.37 in
Package weight: 112g / 3.97oz

Package List:
1 * K2 True Wireless Bluetooth Headset
1 * USB Cable
3 * Earbud
1 * English / Chinese User Manual