customized TWS Wireless Earphone

T9 tws earbuds with 7000mAh of huge battery to support charging of mobile phone Cheap Waterproof TWS Wireless Earphone Chipset Airoha1532 Bluetooth version v5.0 Speaker ￠6mm/16Ω Hi-Fi SPEAKER Battery capacity 2*3.7V/60mAh Music playing time About 5h*40Times RF Sensitivity -94dBm Maximum transmission range of customized TWS Wireless Earphone ≤25M Voltage rating and energy capacity 3.7V/7000mAh Waterproof IPX7 T9 TWS earbuds can support recharge mobile phone and automatic