Version 5.3 of IP56 waterproof ENC Bluetooth 7 hours of playback at 70% volume Six hours of talk time Time needed to charge: two to three hours Dimensions of the product: 132*106*43 mm; net weight: 24 g 10M is the wireless working range when there are no obstructions. 16 mm speaker Sensitivity of the speaker: 86±3db Supported profiles include A2DP 1.3, HFP 1.7, and AVRCP 1.6. Frequency of the speaker: 180 Hz–16,000 Hz