OS Baseus Free2Pull Power Bank with Retractable Cable 10000mAh 30W Cosmic Black 4. Description This is a multiple fast charging protocol certified portable power bank with a built-in retractable two-way fast charging USB-C cable. This product is mini-sized and compact with a digital display for battery level and supports USB-C two-way fast charging for 2 devices simultaneously. It has multiple built-in safety proction circuits for overcurrent, overvoltage, over-temperature,short circuit, etc .
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