LDNIO Wireless Earphone True Bluetooth Headset Low Latency Music Touch Control Stereo Earbuds [ T01 ] Features # Bluetooth 5.3 # In-ear desigh # HD audio # Round appearance design # 350mAh charging ase # Simple gesture peration # USB-C charging port # Noise reduction # Indicator display # Touch button Product Round design Round, Small and cute, perfect color matching, like a work of art. Noise reduction Moderate abatement of external low frequency noise. Hi-fi music quality Excellent sound chip and speaker, bring you concert exprience. 300mAh charging box Powerful battery and charging speed, 1H of charging, 20H of listening. Specs Model T03 Bluetooth Version 5.3 Bluetooth working frequency 2.402GHz-2483.5MHz Receive sensitivity 2.402GHz-2483.5MHz Transmission distance ≥10M Horn power 3mW Frequency response 20Hz~20KHz Speaker type Φ10mm@160hm Earbuds battery capacity 35mAh Charging time about 1H Music playing time about 4H Talk time about 3.5H Charging case battery capacity 350mAh Charging case charging time 1H Standby time 4 months when fully charged Support Bluetooth profile a2dp/avctp/avdtp/avrcp/hfp/spp/ smp/att/gap/gatt/rfcomm/sdp/2cap For More Info. Click Here For More Ldnio Product Click Here