Green Lion River True Wireless Earbuds provide quality sound and comfort. Made of ABS + PC material, it has a light but long-lasting everyday wear structure. With a 13mm speaker size, it gives deep sound, a frequency of 20Hz-20kHz, and a 32? impedance that ensures crystal clear and dynamic sound. The sensitivity of 116±3dB provides depth to your music. With Bluetooth V5.4, these earbuds offer a stable connection within a 10-15m transmission range. Enjoy 6-7 hours of playtime and up to 35 hours standby with the 400mAh case battery and 40mAh earbuds battery. Fast and convenient Type-C charging offers quick recharges in 1.5 hours. Wireless charging is also available for added convenience. Equipped with ANC and ENC clarity technology and noise cancellation of -42dB, you've crystal-clear sound even in the noisiest environments. IPX4 waterproofing protection makes them perfect for outdoor use, and smart in-ear detection delivers peak battery efficiency. Specification Material: ABS + PC Case Battery: 400mAh Earbuds Battery: 40mAh Bluetooth: V5.4 Transmission Range: 10-15m Speaker: 13mm Frequency: 20Hz-20kHz Impedance: 32? Sensitivity: 116±3dB Noise Reduction: -42dB Waterproof: IPX4 Charging Port: Type-C Charging Time: 1.5H Playtime: 6-7H Standby Time: 35H SKU: GNRVRTWSBK | GNRVRTWSWH | GNRVRTWSCM GTIN: 09904781904292 | 09904781904360 | 09904781904438 Features Smart In-Ear Detection ANC + ENC Clarity Type-C Charging Wireless Charging