Havit E531BT Wireless Bone Conduction Bluetooth Earbuds

IP56 waterproof ENC Bluetooth Version: 5.3 Playtime: 7 hours (70% volume) Talk time: 6 hours Charging time: 2-3 hours Product dimension: 132*106*43mm Net weight: 24g Wireless working range: 10M (without obstacles) Speaker: 16MM Speaker sensitivity: 86±3db Profiles supported: A2DP 1.3, HFP 1.7, AVRCP 1.6 Speaker frequency: 180hz-16000Hz