Description Features Specifications ag TWS04K Black is tuned by the Japanese high-end audio brand, final, promising high-fidelity sound quality and can easily be considered as the best wireless solution for true audiophiles. ag TWS04K Black is designed for Audiophiles. Combining a high-quality driver with a sophisticated internal structure and final's expertise in high-end audio, TWS04K Black promises Hi-Fi sound quality. The case is equipped with a high-capacity battery which can fully charge the earphones 20 times before requiring a recharge, resulting in 180 hours of music playback. The earphone features IPX7 rating. ag TWS04K Black functions excellently even during a downpour or the most intense workout session. - Ultra-Long Battery Life - aptX Support - Stable & high-quality sound - IPX7 Rating Bluetooth Bluetooth 5.0 Playback Frequency Band 20Hz-20000Hz Supported Codec SBC, AAC, Qualcomm aptX Audio Profiles A2DP, AVRCP, HSP, HFP Continuous Music Playback Time SBC, AAC : Up to 9 hours, aptX : Up to 6 hours (Up to 180 hours with case) Charging Time Earphones: 2 hours / Case: 4 hours Battery Capacity Earphone 45 mAh / Case 2600 mAh