5.3 Over-Ear Three True Digital Display Wireless Bluetooth Headset Intelligent Noise Reduction,-And Conversable, Suitable For Sports/Office Features: Product name: Bluetooth headset Item model number: J99 Colour: Black Bluetooth: 5.3 Impedance: 32 Ω±15% Distortion: ≤3% Transmision distance: 10 m Frequency: 20 HZ-20 KHZ Charing interface: Type-C Charging time: 60 minutes Working voltage: 3.7 V-4.2 V Earphone battery capacity: 50 mah Earphone battery capacity: 300 mah Product size: 9.2x6.3x3.4 cm( 3.62x2.48x1.18 inch) Package size: 13.7x8.2x3.7 cm( 5.39x3.23x1.46 inch) Gross weight: 148 g/0.326 lb Product Description: Bluetooth 5.3 technology - This headset uses Bluetooth 5.3 chip. Stable data transmission and wide wireless coverage. all Bluetooth-enabled devices. Connects automatically at first and later. Colorful and transparent, youthful appearance ------ young color scheme, is the favorite of young people, compact appearance, highlighting the cute taste, walking in the street you will be a beautiful people. Intelligent digital display, high-fidelity stereo sound quality ------ This Bluetooth ear headset displays power through a digital display, and its speaker uses the latest technology with a 13mm bio-diaphragm for a transparent and powerful sound quality. The is thick and powerful, the high and midrange is bright and clear, and the three frequencies are balanced. Five-levels-of- ------ not afraid of sweat The headset body is designed with a multi-channel process to achieve . Life grade-, not afraid of rain, not afraid of sweat, not afraid of wind and rain. Lighter and comfortable easier ------ ergonomic support decompression does not pick ears, ears and then small also comfortable, to meet the different sports crowd ear gallery wear. You no longer have to worry about these earphones will fall off! No pain even with prolonged use. Suitable for gym, fitness and running. Instructiongs: Because the size of the product is measured manually, there may be errors. Product Includes： 1 x Bluetooth Headset 1 x Manual 1 x Data Cable