What's in the box:

ZR900 TWS Bluetooth Headphones IPX5 True Wireless Earphones Headsets Bluetooth 5.0 Stereo Sound with Mic Charging Box (01)

ZR900 TWS headphone is equipped with large capacity charging box, convenient to charge. It adopts BT V5.0 technology, offering stable connectivity and less energy consumption. With in-ear design and soft silicone earhook, the earphone is really comfortable to wear for a long time and not easy to fall off. Built-in microphone enables hands-free calls to set free your hands when doing sports. Buttons on the earphone to adjust volume, Play/Pause, the previous/next song, answer/reject number.

Features:
Ergonomic Design:
With in-ear design and soft silicone earhook, the earphone is really comfortable to wear for a long time and not easy to fall off. Soft earbuds offer you great wearing experience.
Single or Double Mode:
In monaural mode, it allows you to share music with your lover. Or in binaural mode, you can enjoy stereo music and concentrate on your work.
BT V5.0:
Wireless BT V5.0 technology offers stable connectivity and less energy consumption. It is compatible with almost all BT-enabled devices and can transmit up to 10 meters.
Hands-free Call:
Built-in microphone enables hands-free calls to set free your hands when doing sports. Buttons on the earphone to adjust volume, Play/Pause, the previous/next song, answer/reject number.
Compact Charging Box:
The charging box has a compact size, easy to carry along. 500mAh large capacity can charge the earbuds for about 3-4 times whenever and wherever possible.

Specifications:
Product No.: ZR900
BT Version: V5.0
Transmission Range: 10M (without obstacles)
BT Protocol: HSP, HFP, A2DP, AVRCP,TWS, AAC
Frequency Response: 20Hz-20KHz
Impedance: 16O15% 1kHz
Sensitivity: 903dB 1kHz/1mW
Speaker: F8MM, Titanium diaphragm
Input Voltage: DC 5V/1A
Dust & Waterproof: IPX5
Battery Capacity: Charging Box: 500mAh; Earphone: 2*65mAh
Charging Time: About 2 Hours
Play Time: 3.5 Hours (medium volume)
Talk Time: 4.5 Hours
Standby Time: 80 Hours
Material: Aluminum / ABS / Silica gel
Earphone Size: 3*1.9*1.9cm / 1.18*0.75*0.75in
Earphone Weight: 5.8g / 0.2oz (with Silicone Earhook)
Package Size: 9.3*7.8*6.1cm / 3.66*3.07*2.40in
Package Weight: 143.3g / 5.05oz
Color: Black

Packing List:
1 * Pairs of Earphones
1 * Charging Bin
1 * Charging Cable
1 * User Manual (English)