J128 PRO MAX หูฟังเสียง หูฟังเสียงไวร์เลส สำหรับศัพท์ คอมพิวเตอร์ ฟังเพลง เล่นเกม

Basic Introduction. The product uses Jerry 6955F V5.3 version, operates in the 2.4G frequency band, with a frequency range of 2402-2480MHz, Class II RF power level, and supports A2DP, AVRCP, and HFP Bluetooth communication protocols. Basic product parameters. Parameter specifications. Bluetooth version V5.3. Bluetooth chip type/model Jerry 6955F. Bluetooth audio decoding SBC. Bluetooth Protocol Bluetooth Call Headphone Protocol HSP None. Bluetooth Handsfree Protocol HFP HFP. Bluetooth Music A2DP A2DP. Bluetooth Music Remote Control AVRCP AVRCP. Bluetooth Advanced Music APTX. Bluetooth parameter transmission frequency 2402-2480MHz. Transmission power 12dB. Transmission range unobstructed open space 10M. Battery life standby time connected state approximay 100H. Call time 13H. Music playback time. 80 volume, song Chain Reaction BT: 15H. Frequency response range: 20Hz~20KHz. Sensitivity 110dB ± 3dB. Shutdown current 8uA. Average standby current 20mA. Working current 80 volume 20mA. Alarm