Description ♫ Ultra Clear and Loud & Voice Access ♫ : Onyx Ace - Crystal clear calls, studio quality audio, 4 microphones and Environment Noise Cancellation technology guarantee crystal-clear and loud call quality, Activate Siri or Google assistant from the earphones via a simple tap. ♫ Genuine Qualcomm & Lossless aptX Audio ♫ : The genuine Qualcomm chip provides the most stable connection, delivering exceptional performance with consistent audio streaming, True Qualcomm aptX audio technology works with the enlarged 13mm driver to deliver hi-fidelity studio quality sound that's clear and bassy. （Lossless aptX audio only for those compatible devices.） ♫ 24-Hour Playtime & IPX5 Waterproof ♫ : Up to 5 hours on a single charge , Up to 24 hours with the charging case （All data based on 50% volume level. Actual results may vary by music genres, volume level, environmental conditions and more.）Against sweat, splashes and rain. ♫ Pressure-free Design & One-Tap Control & Instant Auto-Connection ♫: Designed to fit comfortably in your ear, Tap the earphone gently to access to core functions easily without reaching for your phone, Open the case cover, the earphones will recognize and connect to your phone instantly. ♫ Go Mono or Stereo & USB-C Fast Charging & Be Aware of Your Surroundings ♫: Go Mono or Stereo give you the freedom to wear one or both earphones, USB-C Fast Charging provides a more stable and faster charging, The half-in-ear design lets in some ambient sound to allow you to know what's happening around you. General Brand: Tronsmart Type: Bluetooth Headphones Model: Onyx Ace Color: White Specifications Chip: Qualcomm QCC3020 Bluetooth: V5.0 Bluetooth profile: HFP/HSP/AVRCP/A2DP Audio codec: aptX, AAC, SBC Connection distance: Up to 15 meters / 50 feet Driver diameter: 13mm Microphone Sensitivity: -42dB ± 1dB Impedance: 32Ω Audio Frequency range: 20 - 20K Hz Playtime: Earphone: up to 5 hours (50% volume); Charging case: up to 24 hours (50% volume) Battery: Earphone: 40 mAh; Charging case: 400 mAh Input: Earphone: 35 mA max.; Charging case: 300mA max. Charging time: Earphone: about 1 hour 20 minutes; Charging case: about 1 hour 30 minutes Standby: Earphone: about 60 hours; Charging case: 90 days Dimensions and weight Product Weight: Earphone: about 4 g / 0.14 oz Charging case: about 37 g / 1.31 oz Product Dimensions: Earphone: 39 x 16.5 x 16.8 mm / 1.54 x 0.65 x 0.66 inches Charging case: 48 x 23 x 57.5 mm / 1.89 x 0.9 x 2.26 inches Package Contents 1 x Onyx Ace True Wireless Earphones with Charging Case 1 x Charging Cable 1 x Warranty Card 1 x User Manual