XO BS33 Sport bluetooth neckband headphones

The BS33 magnetic in-ear headphones connect to any device that has Bluetooth.
They are a suitable choice for running or other sports activities, as they have protection from sweat and rain.
They have a headband that sits on the back of the neck for stability and freedom of movement.

Headphone type: magnetic in-ear
Bluetooth design: AB5616T
Bluetooth version: Bluetooth V5.3
Bluetooth operating frequency: 2.402GHZ-2.480GHZ
Speaker power: Rated 3-5mW
Frequency response: 20Hz~20KHz
Speaker unit: Φ 10mm speaker @32ohm

Microphone: Condenser, -40dB±2

Built-in battery: lithium battery - 3.7V, 105mAh

Standby time: about 100 hours

Music time: about 10 hours (80% volume)

Talk time: Approx. 7 hours (80% volume)

Charging input standard: DC5V-500mA Micro USB

Charging time: about 1.5 hours

Supported Bluetooth protocols: A2DP v1.3, AVRCP v1.6, HFP v1.7, HID v1.1, AVCTP v1.4, AVDTP v1.3 and SPP v1.2