Product Name: TWS true wireless Bluetooth headset BT V5.0, product model: wa-15, chip model: original phase pau1603, Bluetooth version: V5.0, wearing mode: in ear type, supporting Android / ISO / windows, wireless transmission range: greater than 15m, automatic startup, dual headset Bluetooth automatic pairing, frequency range: 2.402ghz ~ 2.480ghz, supporting protocols: HFP 1.7, HSP 1.2, A2DP 1.3, AVRCP 1.6, Transmission power: Class 2 max. 4dbm, audio signal to noise ratio: > 90dbm, distortion: < 3%, sensitivity: 0.1% BER at - 90 DBM, working voltage: 3.7V, charging voltage: 5V, working temperature: - 40 ° C ~ + 85 ° C, battery capacity of charging chamber: 600mah, battery capacity of headset: 60mah, standby time: 120h, call time: 7Music time: 6h, headset charging time: 1H, Waterproof standard grade: ipx5, in line with CE, ROHS, FCC standards, common colors: black, white, other colors can be customized, charging bin size: 62 * 62 * 25MM, product weight: 52g, package list, TWS Bluetooth headset x 2, headset cap x 6, charging bin x 1, USB charging cable x 1, operation manual x 1, warranty card x 1