5.3 Wireless Bluetooth Headset, Full-Ear Heavy Bass Plug-In Card, Foldable And Telescopic Plug-In Cable For Communication Parameter: Product name: Bluetooth headset Item model number: D-816-031 Bluetooth: 5.3 Impedance: 32 Ω±15% Transmision distance: 10 m Frequency: 20 HZ-20 KHZ Operating current: 30mA Sensitivity: 114 + 3 dB or 114 - 3 dB Charging port: Type-C Charging time: 90 minutes Working voltage: 3.7 V-4.2 V Earphone battery capacity: 400 mah Product size: 18.0x19.0x8.8 cm( 6.92x7.48x2.95 inch) Package size: 18.5x14.5x9.3 cm( 7.28x5.71x3.66 inch) Gross weight: 310 g/0.683 lb Product Includes： 1x Bluetooth Headset 1x Manual 1x Data Cable Conjunctive word:ear buds;ear buds wireless bluetooth earbuds;wireless ear buds;skullcandy ear buds earbuds wireless;wired ear buds;ear buds skullcandy earbuds;bluetooth ear buds;earphones;earphones wireless bluetooth;earphones wired;wireless earphones;earphones with cord;headphones;bluetooth headphones;headphones wireless;wireless headphones;noise cancelling headphones Design: This wireless earbuds with advanced bluetooth technology owns fast and stable transmission without tangling, which makes the Bluetooth earbuds connect to electronic devices more consistently, providing you with an uninterrupted calling and music experience and Noise cancellation This bluetooth earbuds provides pure balanced audio and clarity output for all music genres with loud sound, rich bass, clear midrange, balanced treble and high definition This headphones for school can fit for camping, running, or working out, even on a rainy day.Take it with you on your each travel to enjoy music anywhere, anytime Wireless Earbuds Mini Ear Buds Bluetooth 5.3 Headphones Bluetooth Headsets Light-Weight Earphones With Microphone Charging Case Display For TV Phone PC Laptop Ear Buds