Bluetooth Headphones, COOSII Wireless Sport Earbuds Sweatproof In Ear Earphones with Mic Magnetic for Running Workout Gym iOS Android Cell Phones(Black Red)

Comfort and Stability
With ergonomic design and silicone ear hooks,provide more secure comfort fit for long time wearing and running without falling out. Let you enjoy great sound on-the-go.

Magnetic design
Built-in magnets let you attach the two earbuds together when not using, and wear like a necklace around your neck,greatly decreasing the burden on ears and give you a convenient way to carry around the earphones.

Sweatproof Sports Earbuds
Equipped with IPX6 water resistant level for better protection in light rain or sweat, which makes the headphones more durable.

Wide Compatibility
COOSII S7 wireless earbuds can compatible with most of Bluetooth devices, including iPhone Android smartphones,ipad laptop,tablet and so on

Long Play Time
Built-in 400mAh lithium battery. One charge gives you up to 10 hours audio play time, enough to power your workout with music for a week.

General Specifications

Driver size : 12mm
Dynamic Frequency Response Range: 10Hz – 22kHz
Sensitivity : 94dB@1kHz, 1mW
Microphone sensitivity: 1kHz dB v/pa-20
Impedance: 16 ohm
Bluetooth Max Output Power: 4dBm
Bluetooth transmitted modulation GFSK, ?/4-DQPSK, 8DPSK
Bluetooth Frequency: 2.402GHz-2.48GHz

Battery

Battery type: Polymer Li-ion Battery (3.7V, 400mAh)
Charging time: 1.5 hours
Weight: 53g

Unboxed

S7 Wireless Headphones 
Medium, Large Ear tips and Earhooks 
Universal USB charging cable 
Quick Start Guide 
1- Year HASSLE-FREE Parts & Labor Warranty 
Earphones case