Aluminum Alloy V5.0 True Wireless Bluetooth Headphones

" Bluetooth V5.0 version, stable transmission, automatic startup and pairing can be completed Waterproof standard grade IPX7, daily waterproof Music can be played continuously for up to about 6 hours, with stereo surround sound and super shocking bass Aluminum alloy charging box, great quality " https://live.staticflickr.com/65535/52392217236_21d0ca4be4_z.jpg https://live.staticflickr.com/65535/52392463703_e17175cb09_z.jpg https://live.staticflickr.com/65535/52662348420_b11dfedfea_z.jpg https://live.staticflickr.com/65535/52661905156_9e8a916fd8_z.jpg https://live.staticflickr.com/65535/52661905231_348b59dc6f_z.jpg https://live.staticflickr.com/65535/52662348445_1fedc5f02a_z.jpg https://live.staticflickr.com/65535/52662348395_ea3af2f988_z.jpg https://live.staticflickr.com/65535/52661405877_2aaec82d0c_z.jpg https://live.staticflickr.com/65535/52662396673_54fb3b0954_z.jpg https://live.staticflickr.com/65535/52661905266_899f8e7c28_z.jpg https://live.staticflickr.com/65535/52662396643_c18356de81_z.jpg https://live.staticflickr.com/65535/52662348500_815bea0955_z.jpg https://live.staticflickr.com/65535/52662396673_54fb3b0954_z.jpg https://live.staticflickr.com/65535/52662396728_1023575fc3_z.jpg https://live.staticflickr.com/65535/52661905161_e589973ece_z.jpg " Bluetooth version: V5.0 Wearing method: In-ear type Support: Android/iOS/Windows Wireless transmission range: 15 meters Frequency range: 2.402GHz~2.480GHz Support protocols: HFP1.7, HSP1.2, A2DP1.3, AVRCP1.6 Transmission power: Class 2 Max 4dBm Audio signal-to-noise ratio: >90dbm, distortion <0.1% Sensitivity: 0.1%BER at -90dbm Working voltage: 3.7V, charging voltage: 5V Working temperature: -40℃ ~ +85℃ Charging box battery capacity: 500mAh Headphone battery capacity: 60mAh Standby time: 120 hours Talk time: 7 hours Music playing time: 6 hours Headphone charging time: 1 hour Waterproof standard grade: IPX5 Comply with CE, ROHS, FCC standards Charging box size: 91*28*32mm Product weight: 60g Origin: China NCC certification: CCAP19LP2540T0" " Instructions for use: Connect to mobile phones, tablets and computer devices. One-year warranty, the warranty will not be valid if the following conditions occur: ◆Damage caused by soaking in water, moisture, impact, scratch, or excessive pulling. ◆If you disassemble it yourself or if the warranty label is damaged or unclear. ◆Faults caused by improper use such as wrong machine model and wrong drawing method. "