10 hours of Playtime / IPX7 Waterproof; Tech Spec: Output Power: 20 W RMS; Frequency Response: 65 Hz 20 kHz; Signal-to-noise ratio: > 80 dB; Battery type: Li-ion polymer 11.70 Wh (equivalent to 3.6V, 3250mAH); Battery charge time: 3 hours (5V / 2A); Music play time: up to 10 hours (dependent on volume level and audio content); Cable type: USB-C charging cable; Cable length: 1200mm/ 47.2; Bluetooth® version: 5.1; Bluetooth® profile: A2DP 1.3, AVRCP 1.6; Bluetooth® transmitter frequency range: 2400 MHz 2483.5 MHZ; Bluetooth® transmitter power: ? 9 dBm (EIRP); Bluetooth® transmitter modulation: GFSK, n/4 DQPSK, 8DPSK; Product dimension (W x H x D): 175 x 68 x 70mm/ 6.9 x 2.6 x 2.7; Net weight: 0.52/ 1.14 lbs; Maximum operation temperature: 45 °C; Do not expose the JBL Flip Essential 2 to liquid without removing cable connection and ensure the charging port lid is tightly closed. Do not expose JBL Flip Essential 2 to water while charging. It may result in permanent damage to the speaker or power source. Chemicals, salt or "foreign particles" in a pool or the ocean can damage the waterproof seals or harm the connector surface over time if not rinsed off after use. After a liquid spill or rinse, do not charge speaker until it's completely dry and clean. Charging when wet might damage your speaker. When using an external adapter, the output voltage/current of the external adapter should not exceed 5V/3A