Edifier Comfo C Sand White Open-ear True Wireless Earbuds Specification Bluetooth V5.4 Driver Unit Φ12mm Audio Codec SBC, AAC ENC 1+1 mics, AI algorithm Playtime 7.5+22.5=30hrs Fast Charging 15mins = 2.5hrs Multi-point connection IP Rating IP55 Earbuds weight 5.8g/ per side APP (control settings, Customized EQ)