Wireless Blue Tooth Headset Waterproof Earphones Built-in Mic for Sport Running True Wireless Headphones Stereo Sound Specifications: Name: Wireless Blue tooth Headset Color: gold, silver Material：ABS Support: HFP / HSP / A2DP / AVRCP / SPP Standby time: 120H Talk time: 10H Music time: 10H Charging time: 1.5H Working distance: 15m Battery capacity: 90mAH / 3.7V Charging voltage: DC5V Size: 5 * 4.5 *2cm Speaker parameters: 30mm Sensitivity: 92dB ± 3dB Impedance: 16 ± 15% Frequency: 20-20000Hz Features: 1. IPx4 waterproof and sweat proof, which can effectively prevent the sweat during exercise from affecting the headset operation, and is not afraid of daily rain and sweat. 2. Automatic noise reduction design, wear headphones and listen to your own music without being disturbed by the ambient noise. 3. The soft ear pad is comfortable to wear and has good sealing effect. It can also improve and strengthen the bass effect and bring you a good music experience. 4. The headset is fully charged once and can be played continuously for up to 10 hours. 5. Bluetooth V5.0 chip has high transmission efficiency, long transmission distance, low power consumption and strong compatibility. Product List: 1 Pair x Bluetooth Headset 1 x Manual Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding. IPx4 waterproof and sweat proof, which can effectively prevent the sweat during exercise from affecting the headset operation, and is not afraid of daily rain and sweat. Automatic noise reduction design, wear headphones and listen to your own music without being disturbed by the ambient noise. The soft ear pad is comfortable to wear and has good sealing effect. It can also improve and strengthen the bass effect and bring you a good music experience. The headset is fully charged once and can be played continuously for up to 10 hours. Bluetooth V5.0 chip has high transmission efficiency, long transmission distance, low power consumption and strong compatibility.