RED BULL EARBUDS RB-EB 220

Design: In-ear earbuds with a charging case shaped like a racing helmet.
Connection: Bluetooth 5.4 for a fast and stable wireless connection.
Drivers: 13mm dynamic drivers.
Noise cancellation: Environmental Noise Cancellation (ENC) is available, using four microphones for clear hands-free calls.
Playtime: Approximately 4 to 5 hours on a single charge.
Earbud battery: 30mAh for each earbud.
Charging case battery: 250mAh to 300mAh, with variations reported in different product listings. The case provides multiple recharges.
Charging time: About 1 to 1.5 hours, according to various listings.
Impedance: 32Ω.
Frequency: 20Hz–20kHz.
Features: Easy wireless connection and hands-free calling.