Features:
100% brand new, high quality.
Sweatproof and water resistant design.
Model: DA S4
Size: 72cm
Available color: Black, Blue, Red, Yellow
Bluetooth version: V4.1
Support agreement: HFP/HSP/A2DP/AVRCP
Wireless Range: 10m/33ft
Battery capacity: 70mAh
Charging time: 1~2 hours
Talking time: 4~6 hours
Music listen time: 4~6 hours
Voice prompt, stereo sound.
DSP noise reduction.
Can be used to answer calls or listen music.
Display battery capacity on IOS system device.
Support skip songs, volume adjustment, chinese-english shifting.
Can connect two phones at the same time.

Package Includes:
1 x Bluetooth headset
1 x USB charging cable
1 x User Manual
2 x Ear Buds

• Unique Design: Ultra-light and unique sports design ear hooks, ensure the headphones stay stable in your ears and yet not a burden for you during exercising at the gym, including running, jogging, riding bikes or other sports. Premium soft smooth silicone gel surface helps sweat proo
• Perfect Sound Quality: Noise cancellation makes you enjoy clear sound for calls and music playing in noisy occasion. It is ideal for high quality music while running, jogging, cycling, skating, etc
• Excellent Battery Performance: 33ft Bluetooth distance, the simple user interface on one of the earphones allows you adjust the volume, play/pause, select songs and answer/hang up calls completely effortlessly. Powerful rechargeable battery provides 7 hours of talking/playing time
• Light as Feather: Stylish streamline design guarantees stable and comfortable wearing experience which helps users feel like nothing on their back head in action
• Universal Device Compatibility: Redlink 4.1 Wireless headphones can work seamlessly with your iPad, iPhone, iPod Touch, Android Smartphones, tablets, Bluetooth-enabled music players and any devices with Bluetooth connection

Unique Design: Ultra-light and unique sports design ear hooks, ensure the headphones stay stable in your ears and yet not a burden for you during exercising at the gym, including running, jogging, riding bikes or other sports. Premium soft smooth silicone gel surface helps sweat prooeshion