**When TWS connect left will be Main mic, and will received clearer voice compare to the right side **Once you use right side as Main, Left side will will softer in Mic Brand : Tronsmart Model : Onyx Ace Color : White / Black Technology: Qualcomm aptX audio technology, cVc 8.0 noise cancellation technology, Environment Noise Cancellation technology, DSP Chip : Qualcomm® QCC3020, supports aptX, AAC, SBC Bluetooth Version: 5.0 Bluetooth Compatibility: HFP/HSP/AVRCP/A2DP Transmission Distance: Up to 15 meters / 50 feet Water Resistant: IPX5 Battery Capacity : Earphone: 40 mAh; Charging case: 400 mAh Play Time : Earphone: up to 5 hours (50% volume); Charging case: up to 24 hours (50% volume) Standby Earphone: about 60 hours; Charging case: 90 days Charging Time : Earphone: about 1 hour 20 minutes; Charging case: about 1 hour 30 minutes Frequency Range: 20 - 20K Hz Driver Unit: 13mm Impedance : 32Ω Microphone Sensitivity: -42dB ± 1dB Dimension & Weight : - Earphone: 39 x 16.5 x 16.8 mm, 4g - Charging case: 48 x 23 x 57.5 mm, 37g *Not support recording voice messages/voice memo.* Package Contents 1 x Onyx Ace True Wireless Earphones with Charging Case 1 x Charging Cable 1 x Warranty Card 1 x User Manual Feature: ~ Original Tronsmart Onyx Ace TWS Bluetooth 5.0 Earphone; ~ Supports Noise Cancellation; ~ Supports APTX with Qualcomm® Chip; ~ Up to 24 hours Playtime; ~ Supports Volume Control; ~ Support Voice Assistant and Touch Control. #premiumbrand #tws #earbuds #tronsmart #apple