Grostar L21 Wireless mini blutooth Earbuds

Catalog Name:*Techfire Bluetooth Headphones & Earphones* Brand: Others Material: ABS Plastic Product Type: Product Dependent Type: Product Dependent Compatibility: All Smartphones Multipack: 1 Color: Black Mic: Yes Bluetooth Version: 5.1 Warranty_Period: 1 Year Brand Warranty Warranty_Type: On Site Operating Voltage: 5 Volts Charging Type: Micro USB Battery Charge Time: 1 Hour Battery Backup: 15 Hours Frequency: 100 Hz Control Button: Yes Play Time: 20 Hours Dynamic Driver: 9 mm Transmission Distance: 10 Mtr Noise Cancelling: Yes Service Type: Replacement Sports Earphones: Yes Sweat Proof: Yes Water Resistant: Product Dependent Sizes: Free Size (Length Size: 10 cm) Dispatch: 1 Day