What are the product specifics of Beatbuds X1? August 25, 2023 12:16 Updated Bluetooth version V5.3 Stand-by time 140 days Talk time 4 hours Music playtime 5-6 hours Charging time 1,5 hours Charging voltage DC 5V Frequency range 20-20000HZ Transmission distance 10-15m Battery capacity 33mAh Charging case 320mAh