Features: brand new and high quality Easy to Use: The Bluetooth-compatible headphone adopts advanced Bluetooth-compatible 5.0 technology with fast transmission speed and strong stability. After opening the charging chamber, you can immediately pair the earbud with Bluetooth-compatible devices. Ergonomic Design: The Bluetooth-compatible wireless headphone is ergonomically designed. You can wear it comfortably for a long for time during running or other outdoor activities. The charging box is small and light in appearance, easy to carry. High-Quality Battery Life: Bluetooth-compatible earbud can provide ultra long operation for time with one single charge. Waterproof Earphone: It is real wireless earphone with high waterproof rating, so you don'for t have to worry about sweating even when running, yoga, fitness or cycling. Enjoy it! Professional Sound Quality: it is designed with for high fidelity sound quality. When you listen to music, it provides strong , clear vocals and crisp treble. When answering calls, it can actively reduce noise and make the communication clear. Specifications: Material: ABS Bluetooth-Compatible Version: V5.0+EDR Wireless Frequency: 2.4 GHZ Support Agreement: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Transmission Distance: 10 for m/32.80 inches Approx. Battery Capacity: 50 mAh (inclusive) Charging Voltage/Current: 5V/1A Playing/Talking Time: About 4 Hours Charging Time: 1 Hour Approx. Standby Time: 120 Hours Approx. Speaker Impedance: 8mm 32 Microphone Sensitivity: -42db Working Temperature: -10-50 Degrees Celsius Charging Box Capacity: 400mAh (inclusive) Features: Wireless, Waterproof, Portable, Comfortable To Wear Size: 13cm X 6cm X 2cm/5.12" X 2.36" X 0.79" (Approximately) Note: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Package includes: 1 Piece of Earphone