Specifications：
Bluetooth scheme: Jieli AC7003D8, V5.3
Sound channel: stereo
Supported protocols: A2DP, AVRCP, HSP, HFP
Battery capacity of earbuds: 35mAh * 2 (without protection board but protection IC)
Battery capacity of charging case: 300mAh (with protection board)
Diameter of horn: 13mm Charging time: 1.5h
Talk time: 7h Play time: 6h
Standby time: 300h Horn sensitivity: -80dBm
Horn impedance: 32Ω Standard input voltage: DC 5V
Bluetooth working frequency: 2,402Hz~2,480MHz
Frequency response range: 20Hz-20KHz
Maximum transmission distance: 10m
Voice prompt: supported
Multi-point connection: unsupported
Wearing method: In-ear
User manual: Chinese and English Port: Type-C
Novel/retro appearance, cool charging case with merry-go-round lights
ENC depth (4 mics): ＞-40dB
ANC depth: ＞-35dB
Size: 68.58 * 52.35 * 28.2mm
Accessories: USB charging cable, user manual, large & small earplugs