description: A9 pro ANC fifth generation + smart screen "ANC+ dual-mark ENC+ in-ear detection light sense" Color: White - Black Chip: Jerry 7003D8 noise reduction + light sensing in-ear detection Version: 5.4 [binaural call] Working frequency: 2.402-2.480GHz, Support protocols: A2DP/AVRCP/HFP/HID/AVCTP/AVDTP, and SPP Transmission distance: 15M [barrier-free] Response frequency: 2020000Hz Speaker unit: ΦF13 titanium film, 32Ω±15%, 7.118±3DB 5mW Microphone: 2718 silicon microphone -42±3dB Charging... description: A9 pro ANC fifth generation + smart screen "ANC+ dual-mark ENC+ in-ear detection light sense" Color: White - Black Chip: Jerry 7003D8 noise reduction + light sensing in-ear detection Version: 5.4 [binaural call] Working frequency: 2.402-2.480GHz, Support protocols: A2DP/AVRCP/HFP/HID/AVCTP/AVDTP, and SPP Transmission distance: 15M [barrier-free] Response frequency: 2020000Hz Speaker unit: ΦF13 titanium film, 32Ω±15%, 7.118±3DB 5mW Microphone: 2718 silicon microphone -42±3dB Charging input standard: contact, DC4.75-5.25 V/600MAH Battery type: 3.7V polymer battery 500mAh with protection board (3C fast charging battery), headphone battery 30mah Charging time: 1h Headset working time: the measured 100% volume plays continuously for about 5.5 hours A9 PRO Digital Display AirPods PRO The A9 PRO Bluetooth earbuds offer superior sound quality with ANC (Active Noise Cancellation) and ENC (Environmental Noise Cancellation) technology. The digital display provides easy monitoring of battery life, while the wireless charging capability ensures convenience. Technology: ANC and ENC for enhanced sound clarity. Design: Sleek, digital display for battery monitoring. Functionality: Wireless charging for hassle-free use. Comfort: Ergonomic design for a secure, comfortable fit. Connectivity: Bluetooth for seamless pairing with devices. Show More