UiiSii E1 TWS Bluetooth Earbuds Dual-Ear In-Ear Design for Sports Deep Bass Noise Cancellation and High-Quality Stereo Sound - Black

Key Features

• Sound Quality: 13mm small dynamic driver unit for faster and clearer signal transmission, delivering powerful bass that feels like you're right there

• Wearing Comfort: In-ear design, ergonomically designed for all-day comfort without discomfort

• Battery Life: Comes with a portable charging case, providing up to 25 hours of music playback with ample battery capacity

• Water Resistance: IPX5 water resistance rating for comprehensive protection

• Touch Controls: Sensitive touch controls allow you to answer calls, switch tracks, and more with a simple touch, ensuring a seamless user experience

Product Specifications

• Bluetooth Version: 5.3

• Speaker Diameter: 6mm

• Frequency Range: 20–20,000Hz

• Sensitivity: 100 ± 3dB

• Impedance: 16Ω

• Transmission Range: Approximately 10m

• Single Earbud Weight: 4g

• Total Weight: 43g

• Input: 5V 1A

• Playback Time: Approximately 25 hours

• Lithium-ion Polymer Battery 3.7V: Earbud 40mAh, Charging Case 400mAh

• Standby Time (including charging case): Approximately 300 hours

Charging Time: Earbud approximately 1.5 hours, Charging Case approximately 2 hours

Troubleshooting: When only one TWS earbud connects

• Check if the battery level is below 10%. If too low, charge immediately.

• If earbuds fail to auto-pair, both red lights will flash rapidly. Quickly press the power button on both earbuds 5 times simultaneously. When red lights appear, reset is complete.

• Place both earbuds into the charging case, then remove them. They will automatically pair successfully.