Specifications: Bluetooth Version: 5.1 (Jieli Chip) Support Protocol: HSP, HFP, A2DP, AVRCP Battery Capacity: 45mAh Capacity of Charging Case: 390mAh Input Charging Standard: DC5V Product Color: Black Charging time: 1.5H Talk Time: 4H Play Time: 3.5H Standby Time: 300H Best Transmission Distance <1M Maximum Transmission Distance: 10M Voice Prompt: Support Impedance: 16Ω±15% Sensitivity: 93dB Frequency Response Range: 20HZ-20000HZ Voice Prompt: English Double Horns: Φ6mm/16ΩWT0606*2 Multipoint Connection: Nonsupport Wearing Style: In-Ear User Manual: Chinese and English Included Accessories: USB Cable, User Manual
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