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Wireless Earphone I7/i7S 5.0 Wireless Earphone Noise Canceling Earphone Features: 1. The single ear is also suitable for all wireless 4.1 + EDR, the signal is more stable, and the data transmission is strengthened. 2. Stylish, elegant and ergonomic design. 3. Adopt advanced CVC 6.0 intelligent noise reduction. 4. Built-in high-sensitivity microphone provides clear and loud sound. 5. Built-in 60mAh rechargeable polymer battery. Allows you to easily answer calls for safe driving or exercise. Description: This product has a stable signal, enhanced data transmission, stylish, elegant and ergonomic design, intelligent noise reduction, and escort your wireless music. Specifications: Transmission range: 10m Wireless protocol: 4.1 Channel: Mono Life time: 3 hours Package Included: 1 pair * earphone 1 * Manual 1 * Data cable Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.