Green Lion True Wireless Earbuds 4 G1 includes a high-excursion driver and a wide frequency response of 20Hz to 20kHz for premium sound. Equipped with Bluetooth V5.3, it provides stable connectivity and enables perfect voice communication within 25 meters. With their high sensitivity of 104+3 dB and impedance of 32?, they promise rich, clear sound. The earbuds feature a 30mAh-driven battery, touted to provide up to 5 hours of playback, while the case with a 300mAh battery prolongs the battery life for 20 more hours. Charging is not an issue due to the presence of a Type-C port, and fully charged within 2 hours. With comfort in mind, these earbuds are waterproof with their IPX4 rating and touch-operated for seamless handling. ENC TWS technology further enhances call clarity, making them ideal for musical and hands-free use. Green Lion True Wireless Earbuds 4 G1 merge fashionable looks, good performance, and ease of use. Specification ?Material: ABS + PC Case Battery: 300mAh Buds Battery: 30mAh Bluetooth: V5.3 Transmission Range: 25 Meters Frequency: 20Hz - 20kHz Waterproof: IPX4 Impedance: 32? Speaker: High-Excursion Driver Sensitivity: 104+3 dB Charging Port: Type-C Charging Time: 2 Hours Playtime: 5 Hours Case Battery Life: 20 Hours Features Comfortable to Wear Touch Control Type-C Charging ENC TWS